565201428 has 48 divisors (see below), whose sum is σ = 1440524736. Its totient is φ = 171055360.

The previous prime is 565201411. The next prime is 565201451. The reversal of 565201428 is 824102565.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123550 + ... + 128042.

It is an arithmetic number, because the mean of its divisors is an integer number (30010932).

Almost surely, 2^565201428 is an apocalyptic number.

It is an amenable number.

565201428 is an abundant number, since it is smaller than the sum of its proper divisors (875323308).

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

565201428 is a wasteful number, since it uses less digits than its factorization.

565201428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5464 (or 5462 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 565201428 is about 23773.9653402624. The cubic root of 565201428 is about 826.8011718211.

The spelling of 565201428 in words is "five hundred sixty-five million, two hundred one thousand, four hundred twenty-eight".