52372731 has 4 divisors (see below), whose sum is σ = 69830312. Its totient is φ = 34915152.

The previous prime is 52372729. The next prime is 52372739. The reversal of 52372731 is 13727325.

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

It is not a de Polignac number, because 52372731 - 2¹ = 52372729 is a prime.

It is a super-2 number, since 2×52372731² = 5485805904796722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52372739) 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, 8728786 + ... + 8728791.

It is an arithmetic number, because the mean of its divisors is an integer number (17457578).

Almost surely, 2^52372731 is an apocalyptic number.

52372731 is a deficient number, since it is larger than the sum of its proper divisors (17457581).

52372731 is a wasteful number, since it uses less digits than its factorization.

52372731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17457580.

The product of its digits is 8820, while the sum is 30.

The square root of 52372731 is about 7236.9006487584. The cubic root of 52372731 is about 374.1408026946.

The spelling of 52372731 in words is "fifty-two million, three hundred seventy-two thousand, seven hundred thirty-one".