52612720 has 20 divisors (see below), whose sum is σ = 122324760. Its totient is φ = 21045056.

The previous prime is 52612711. The next prime is 52612723. The reversal of 52612720 is 2721625.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52612723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328750 + ... + 328909.

It is an arithmetic number, because the mean of its divisors is an integer number (6116238).

Almost surely, 2^52612720 is an apocalyptic number.

It is an amenable number.

52612720 is an abundant number, since it is smaller than the sum of its proper divisors (69712040).

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

52612720 is a wasteful number, since it uses less digits than its factorization.

52612720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657672 (or 657666 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 52612720 is about 7253.4626213968. The cubic root of 52612720 is about 374.7114105593.

The spelling of 52612720 in words is "fifty-two million, six hundred twelve thousand, seven hundred twenty".