52580916 has 36 divisors (see below), whose sum is σ = 136007872. Its totient is φ = 17118864.

The previous prime is 52580909. The next prime is 52580939. The reversal of 52580916 is 61908525.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15436 + ... + 18531.

Almost surely, 2^52580916 is an apocalyptic number.

It is an amenable number.

52580916 is an abundant number, since it is smaller than the sum of its proper divisors (83426956).

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

52580916 is a wasteful number, since it uses less digits than its factorization.

52580916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34020 (or 34015 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 52580916 is about 7251.2699577384. The cubic root of 52580916 is about 374.6358919152.

It can be divided in two parts, 525809 and 16, that added together give a triangular number (525825 = T₁₀₂₅).

The spelling of 52580916 in words is "fifty-two million, five hundred eighty thousand, nine hundred sixteen".