53112690 has 24 divisors (see below), whose sum is σ = 138093228. Its totient is φ = 14163360.

The previous prime is 53112677. The next prime is 53112691. The reversal of 53112690 is 9621135.

53112690 is a `hidden beast` number, since 531 + 126 + 9 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 53100369 + 12321 = 7287^2 + 111^2 .

It is a super-2 number, since 2×53112690² = 5641915678072200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53112691) 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, 294981 + ... + 295160.

Almost surely, 2^53112690 is an apocalyptic number.

53112690 is an abundant number, since it is smaller than the sum of its proper divisors (84980538).

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

53112690 is a wasteful number, since it uses less digits than its factorization.

53112690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590154 (or 590151 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 53112690 is about 7287.8453605987. The cubic root of 53112690 is about 375.8946107604.

It can be divided in two parts, 5311 and 2690, that added together give a triangular number (8001 = T₁₂₆).

The spelling of 53112690 in words is "fifty-three million, one hundred twelve thousand, six hundred ninety".