52099524 has 45 divisors (see below), whose sum is σ = 136538941. Its totient is φ = 17323200.

The previous prime is 52099513. The next prime is 52099559. The reversal of 52099524 is 42599025.

It is a happy number.

The square root of 52099524 is 7218.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 51581124 + 518400 = 7182^2 + 720^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 129724 + ... + 130124.

Almost surely, 2^52099524 is an apocalyptic number.

52099524 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

52099524 is the 7218-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52099524

52099524 is an abundant number, since it is smaller than the sum of its proper divisors (84439417).

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

52099524 is an equidigital number, since it uses as much as digits as its factorization.

52099524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818 (or 406 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The cubic root of 52099524 is about 373.4890885669.

Multiplying 52099524 by its sum of digits (36), we get a square (1875582864 = 43308²).

52099524 divided by its sum of digits (36) gives a square (1447209 = 1203²).

Multiplying 52099524 by its product of nonzero digits (32400), we get a square (1688024577600 = 1299240²).

The spelling of 52099524 in words is "fifty-two million, ninety-nine thousand, five hundred twenty-four".