565980525 has 54 divisors (see below), whose sum is σ = 1114323210. Its totient is φ = 274401600.

The previous prime is 565980521. The next prime is 565980529. The reversal of 565980525 is 525089565.

565980525 is a `hidden beast` number, since 5 + 6 + 598 + 0 + 52 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (565980521) and next prime (565980529).

It can be written as a sum of positive squares in 3 ways, for example, as 115734564 + 450245961 = 10758^2 + 21219^2 .

It is not a de Polignac number, because 565980525 - 2² = 565980521 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565980521) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 16831 + ... + 37619.

It is an arithmetic number, because the mean of its divisors is an integer number (20635615).

Almost surely, 2^565980525 is an apocalyptic number.

565980525 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

565980525 is a deficient number, since it is larger than the sum of its proper divisors (548342685).

565980525 is a wasteful number, since it uses less digits than its factorization.

565980525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20827 (or 20808 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 45.

The square root of 565980525 is about 23790.3452055661. The cubic root of 565980525 is about 827.1808963636.

The spelling of 565980525 in words is "five hundred sixty-five million, nine hundred eighty thousand, five hundred twenty-five".