1000555552 has 48 divisors (see below), whose sum is σ = 2017249920. Its totient is φ = 488297728.

The previous prime is 1000555547. The next prime is 1000555559. The reversal of 1000555552 is 2555550001.

It is a happy number.

It is a super-2 number, since 2×1000555552² = 2002222825276049408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1000555552.

It is not an unprimeable number, because it can be changed into a prime (1000555559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 764883 + ... + 766189.

It is an arithmetic number, because the mean of its divisors is an integer number (42026040).

Almost surely, 2^1000555552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1000555552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1008624960).

1000555552 is an abundant number, since it is smaller than the sum of its proper divisors (1016694368).

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

1000555552 is a wasteful number, since it uses less digits than its factorization.

1000555552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1873 (or 1865 counting only the distinct ones).

The product of its (nonzero) digits is 6250, while the sum is 28.

The square root of 1000555552 is about 31631.5594304170. The cubic root of 1000555552 is about 1000.1851497175.

The spelling of 1000555552 in words is "one billion, five hundred fifty-five thousand, five hundred fifty-two".