565054021 has 8 divisors (see below), whose sum is σ = 647250560. Its totient is φ = 483226128.

The previous prime is 565054001. The next prime is 565054027. The reversal of 565054021 is 120450565.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 565054021 - 2⁵ = 565053989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565054027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88866 + ... + 95011.

It is an arithmetic number, because the mean of its divisors is an integer number (80906320).

Almost surely, 2^565054021 is an apocalyptic number.

It is an amenable number.

565054021 is a deficient number, since it is larger than the sum of its proper divisors (82196539).

565054021 is a wasteful number, since it uses less digits than its factorization.

565054021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184323.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 565054021 is about 23770.8649611242. The cubic root of 565054021 is about 826.7292877865.

The spelling of 565054021 in words is "five hundred sixty-five million, fifty-four thousand, twenty-one".