53712690 has 32 divisors (see below), whose sum is σ = 136494720. Its totient is φ = 13480704.

The previous prime is 53712689. The next prime is 53712713. The reversal of 53712690 is 9621735.

It is a super-2 number, since 2×53712690² = 5770106134072200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52150 + ... + 53169.

It is an arithmetic number, because the mean of its divisors is an integer number (4265460).

Almost surely, 2^53712690 is an apocalyptic number.

53712690 is an abundant number, since it is smaller than the sum of its proper divisors (82782030).

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

53712690 is a wasteful number, since it uses less digits than its factorization.

53712690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105346.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 53712690 is about 7328.8941867106. The cubic root of 53712690 is about 377.3047745731.

The spelling of 53712690 in words is "fifty-three million, seven hundred twelve thousand, six hundred ninety".