561153504 has 24 divisors (see below), whose sum is σ = 1473028200. Its totient is φ = 187051136.

The previous prime is 561153503. The next prime is 561153521. The reversal of 561153504 is 405351165.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561153503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2922579 + ... + 2922770.

It is an arithmetic number, because the mean of its divisors is an integer number (61376175).

Almost surely, 2^561153504 is an apocalyptic number.

It is an amenable number.

561153504 is an abundant number, since it is smaller than the sum of its proper divisors (911874696).

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

561153504 is a wasteful number, since it uses less digits than its factorization.

561153504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5845362 (or 5845354 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 561153504 is about 23688.6788149951. The cubic root of 561153504 is about 824.8226145715.

The spelling of 561153504 in words is "five hundred sixty-one million, one hundred fifty-three thousand, five hundred four".