52491522 has 8 divisors (see below), whose sum is σ = 104983056. Its totient is φ = 17497172.

The previous prime is 52491511. The next prime is 52491541. The reversal of 52491522 is 22519425.

It is a sphenic number, since it is the product of 3 distinct primes.

52491522 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 52491522.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4374288 + ... + 4374299.

It is an arithmetic number, because the mean of its divisors is an integer number (13122882).

Almost surely, 2^52491522 is an apocalyptic number.

52491522 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

52491522 is a wasteful number, since it uses less digits than its factorization.

52491522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8748592.

The product of its digits is 7200, while the sum is 30.

The square root of 52491522 is about 7245.1033118928. The cubic root of 52491522 is about 374.4234625108.

The spelling of 52491522 in words is "fifty-two million, four hundred ninety-one thousand, five hundred twenty-two".