561172152 has 32 divisors (see below), whose sum is σ = 1403539200. Its totient is φ = 186976224.

The previous prime is 561172133. The next prime is 561172153. The reversal of 561172152 is 251271165.

561172152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×561172152² = 629828368360622208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561172153) 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, 81633 + ... + 88239.

It is an arithmetic number, because the mean of its divisors is an integer number (43860600).

Almost surely, 2^561172152 is an apocalyptic number.

It is an amenable number.

561172152 is an abundant number, since it is smaller than the sum of its proper divisors (842367048).

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

561172152 is a wasteful number, since it uses less digits than its factorization.

561172152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10155 (or 10151 counting only the distinct ones).

The product of its digits is 4200, while the sum is 30.

The square root of 561172152 is about 23689.0724174671. The cubic root of 561172152 is about 824.8317511813.

The spelling of 561172152 in words is "five hundred sixty-one million, one hundred seventy-two thousand, one hundred fifty-two".