561565432 has 8 divisors (see below), whose sum is σ = 1052935200. Its totient is φ = 280782712.

The previous prime is 561565409. The next prime is 561565441. The reversal of 561565432 is 234565165.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 561565391 and 561565400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35097832 + ... + 35097847.

It is an arithmetic number, because the mean of its divisors is an integer number (131616900).

Almost surely, 2^561565432 is an apocalyptic number.

It is an amenable number.

561565432 is a deficient number, since it is larger than the sum of its proper divisors (491369768).

561565432 is a wasteful number, since it uses less digits than its factorization.

561565432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70195685 (or 70195681 counting only the distinct ones).

The product of its digits is 108000, while the sum is 37.

The square root of 561565432 is about 23697.3718374000. The cubic root of 561565432 is about 825.0243920551.

The spelling of 561565432 in words is "five hundred sixty-one million, five hundred sixty-five thousand, four hundred thirty-two".