52513390 has 16 divisors (see below), whose sum is σ = 94630032. Its totient is φ = 20981824.

The previous prime is 52513387. The next prime is 52513399. The reversal of 52513390 is 9331525.

It is a super-2 number, since 2×52513390² = 5515312258584200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52513399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8577 + ... + 13363.

It is an arithmetic number, because the mean of its divisors is an integer number (5914377).

Almost surely, 2^52513390 is an apocalyptic number.

52513390 is a deficient number, since it is larger than the sum of its proper divisors (42116642).

52513390 is a wasteful number, since it uses less digits than its factorization.

52513390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5891.

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 52513390 is about 7246.6123119703. The cubic root of 52513390 is about 374.4754503061.

The spelling of 52513390 in words is "fifty-two million, five hundred thirteen thousand, three hundred ninety".