52637731 has 4 divisors (see below), whose sum is σ = 54926352. Its totient is φ = 50349112.

The previous prime is 52637699. The next prime is 52637737. The reversal of 52637731 is 13773625.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52637731 - 2⁵ = 52637699 is a prime.

It is a super-2 number, since 2×52637731² = 5541461449656722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52637737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1144276 + ... + 1144321.

It is an arithmetic number, because the mean of its divisors is an integer number (13731588).

Almost surely, 2^52637731 is an apocalyptic number.

52637731 is a deficient number, since it is larger than the sum of its proper divisors (2288621).

52637731 is a wasteful number, since it uses less digits than its factorization.

52637731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2288620.

The product of its digits is 26460, while the sum is 34.

The square root of 52637731 is about 7255.1864896776. The cubic root of 52637731 is about 374.7707778403.

The spelling of 52637731 in words is "fifty-two million, six hundred thirty-seven thousand, seven hundred thirty-one".