1020055200 has 144 divisors (see below), whose sum is σ = 3330474336. Its totient is φ = 271180800.

The previous prime is 1020055187. The next prime is 1020055213. The reversal of 1020055200 is 25500201.

1020055200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1020055187) and next prime (1020055213).

It is a super-2 number, since 2×1020055200² = 2081025222094080000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1020055200.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1542870 + ... + 1543530.

It is an arithmetic number, because the mean of its divisors is an integer number (23128294).

Almost surely, 2^1020055200 is an apocalyptic number.

1020055200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020055200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1665237168).

1020055200 is an abundant number, since it is smaller than the sum of its proper divisors (2310419136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1020055200 is a wasteful number, since it uses less digits than its factorization.

1020055200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327 (or 1314 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 1020055200 is about 31938.3030231727. The cubic root of 1020055200 is about 1006.6408679167.

Adding to 1020055200 its reverse (25500201), we get a palindrome (1045555401).

The spelling of 1020055200 in words is "one billion, twenty million, fifty-five thousand, two hundred".