565465320 has 128 divisors (see below), whose sum is σ = 2154182400. Its totient is φ = 129247488.

The previous prime is 565465309. The next prime is 565465357. The reversal of 565465320 is 23564565.

It is a happy number.

565465320 is a `hidden beast` number, since 565 + 4 + 65 + 32 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29839 + ... + 44958.

It is an arithmetic number, because the mean of its divisors is an integer number (16829550).

Almost surely, 2^565465320 is an apocalyptic number.

It is an amenable number.

565465320 is an abundant number, since it is smaller than the sum of its proper divisors (1588717080).

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

565465320 is a wasteful number, since it uses less digits than its factorization.

565465320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74824 (or 74814 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The square root of 565465320 is about 23779.5147132989. The cubic root of 565465320 is about 826.9298293556.

The spelling of 565465320 in words is "five hundred sixty-five million, four hundred sixty-five thousand, three hundred twenty".