566535420 has 72 divisors (see below), whose sum is σ = 1874723760. Its totient is φ = 137341440.

The previous prime is 566535397. The next prime is 566535433. The reversal of 566535420 is 24535665.

It is a happy number.

566535420 is a `hidden beast` number, since 5 + 66 + 53 + 542 + 0 = 666.

It is a super-2 number, since 2×566535420² = 641924764229152800, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 141085 + ... + 145044.

It is an arithmetic number, because the mean of its divisors is an integer number (26037830).

Almost surely, 2^566535420 is an apocalyptic number.

It is an amenable number.

566535420 is an abundant number, since it is smaller than the sum of its proper divisors (1308188340).

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

566535420 is a wasteful number, since it uses less digits than its factorization.

566535420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286155 (or 286150 counting only the distinct ones).

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

The square root of 566535420 is about 23802.0045374334. The cubic root of 566535420 is about 827.4511345326.

The spelling of 566535420 in words is "five hundred sixty-six million, five hundred thirty-five thousand, four hundred twenty".