505564970 has 16 divisors (see below), whose sum is σ = 919400328. Its totient is φ = 200140800.

The previous prime is 505564951. The next prime is 505564987. The reversal of 505564970 is 79465505.

It can be written as a sum of positive squares in 4 ways, for example, as 303839761 + 201725209 = 17431^2 + 14203^2 .

It is a super-2 number, since 2×505564970² = 511191877782201800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259631 + ... + 261570.

Almost surely, 2^505564970 is an apocalyptic number.

505564970 is a deficient number, since it is larger than the sum of its proper divisors (413835358).

505564970 is a wasteful number, since it uses less digits than its factorization.

505564970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521305.

The product of its (nonzero) digits is 189000, while the sum is 41.

The square root of 505564970 is about 22484.7719579274. The cubic root of 505564970 is about 796.6342816579.

The spelling of 505564970 in words is "five hundred five million, five hundred sixty-four thousand, nine hundred seventy".