1011565552 has 40 divisors (see below), whose sum is σ = 2077434000. Its totient is φ = 475517952.

The previous prime is 1011565543. The next prime is 1011565627. The reversal of 1011565552 is 2555651101.

1011565552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395574 + ... + 398122.

It is an arithmetic number, because the mean of its divisors is an integer number (51935850).

Almost surely, 2^1011565552 is an apocalyptic number.

It is an amenable number.

1011565552 is an abundant number, since it is smaller than the sum of its proper divisors (1065868448).

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

1011565552 is a wasteful number, since it uses less digits than its factorization.

1011565552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4033 (or 4027 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 31.

The square root of 1011565552 is about 31805.1183302311. The cubic root of 1011565552 is about 1003.8404163220.

The spelling of 1011565552 in words is "one billion, eleven million, five hundred sixty-five thousand, five hundred fifty-two".