52653690 has 24 divisors (see below), whose sum is σ = 136899828. Its totient is φ = 14040960.

The previous prime is 52653683. The next prime is 52653697. The reversal of 52653690 is 9635625.

It is an interprime number because it is at equal distance from previous prime (52653683) and next prime (52653697).

It can be written as a sum of positive squares in 2 ways, for example, as 43599609 + 9054081 = 6603^2 + 3009^2 .

It is a super-2 number, since 2×52653690² = 5544822141232200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (52653697) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 292431 + ... + 292610.

Almost surely, 2^52653690 is an apocalyptic number.

52653690 is an abundant number, since it is smaller than the sum of its proper divisors (84246138).

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

52653690 is a wasteful number, since it uses less digits than its factorization.

52653690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585054 (or 585051 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The square root of 52653690 is about 7256.2862402196. The cubic root of 52653690 is about 374.8086490428.

The spelling of 52653690 in words is "fifty-two million, six hundred fifty-three thousand, six hundred ninety".