565213900 has 36 divisors (see below), whose sum is σ = 1291071880. Its totient is φ = 214185600.

The previous prime is 565213897. The next prime is 565213927. The reversal of 565213900 is 9312565.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146841 + ... + 150640.

Almost surely, 2^565213900 is an apocalyptic number.

565213900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

565213900 is an abundant number, since it is smaller than the sum of its proper divisors (725857980).

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

565213900 is a wasteful number, since it uses less digits than its factorization.

565213900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297514 (or 297507 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 565213900 is about 23774.2276425544. The cubic root of 565213900 is about 826.8072533040.

The spelling of 565213900 in words is "five hundred sixty-five million, two hundred thirteen thousand, nine hundred".