52724690 has 16 divisors (see below), whose sum is σ = 95047128. Its totient is φ = 21058176.

The previous prime is 52724689. The next prime is 52724713. The reversal of 52724690 is 9642725.

It can be written as a sum of positive squares in 4 ways, for example, as 44262409 + 8462281 = 6653^2 + 2909^2 .

It is a super-2 number, since 2×52724690² = 5559785871192200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52724690.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3734 + ... + 10926.

Almost surely, 2^52724690 is an apocalyptic number.

52724690 is a deficient number, since it is larger than the sum of its proper divisors (42322438).

52724690 is a wasteful number, since it uses less digits than its factorization.

52724690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7933.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 52724690 is about 7261.1769018528. The cubic root of 52724690 is about 374.9770415574.

The spelling of 52724690 in words is "fifty-two million, seven hundred twenty-four thousand, six hundred ninety".