1053556320 has 96 divisors (see below), whose sum is σ = 3326254848. Its totient is φ = 280309248.

The previous prime is 1053556253. The next prime is 1053556349. The reversal of 1053556320 is 236553501.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×1053556320² = 2219961838823884800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231507 + ... + 236013.

It is an arithmetic number, because the mean of its divisors is an integer number (34648488).

Almost surely, 2^1053556320 is an apocalyptic number.

1053556320 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 1053556320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1663127424).

1053556320 is an abundant number, since it is smaller than the sum of its proper divisors (2272698528).

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

1053556320 is a wasteful number, since it uses less digits than its factorization.

1053556320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5012 (or 5004 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 30.

The square root of 1053556320 is about 32458.5323143238. The cubic root of 1053556320 is about 1017.5425655353.

The spelling of 1053556320 in words is "one billion, fifty-three million, five hundred fifty-six thousand, three hundred twenty".