52645731 has 4 divisors (see below), whose sum is σ = 70194312. Its totient is φ = 35097152.

The previous prime is 52645729. The next prime is 52645757. The reversal of 52645731 is 13754625.

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 52645731 - 2¹ = 52645729 is a prime.

It is a super-2 number, since 2×52645731² = 5543145985048722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52645692 and 52645701.

It is not an unprimeable number, because it can be changed into a prime (52645771) 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, 8774286 + ... + 8774291.

It is an arithmetic number, because the mean of its divisors is an integer number (17548578).

Almost surely, 2^52645731 is an apocalyptic number.

52645731 is a deficient number, since it is larger than the sum of its proper divisors (17548581).

52645731 is a wasteful number, since it uses less digits than its factorization.

52645731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17548580.

The product of its digits is 25200, while the sum is 33.

The square root of 52645731 is about 7255.7377984599. The cubic root of 52645731 is about 374.7897630454.

The spelling of 52645731 in words is "fifty-two million, six hundred forty-five thousand, seven hundred thirty-one".