52492591 has 4 divisors (see below), whose sum is σ = 52574872. Its totient is φ = 52410312.

The previous prime is 52492589. The next prime is 52492597. The reversal of 52492591 is 19529425.

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 52492591 - 2¹ = 52492589 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52492591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52492597) 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, 40176 + ... + 41461.

It is an arithmetic number, because the mean of its divisors is an integer number (13143718).

Almost surely, 2^52492591 is an apocalyptic number.

52492591 is a deficient number, since it is larger than the sum of its proper divisors (82281).

52492591 is an equidigital number, since it uses as much as digits as its factorization.

52492591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82280.

The product of its digits is 32400, while the sum is 37.

The square root of 52492591 is about 7245.1770854825. The cubic root of 52492591 is about 374.4260042289.

The spelling of 52492591 in words is "fifty-two million, four hundred ninety-two thousand, five hundred ninety-one".