52520720 has 40 divisors (see below), whose sum is σ = 139556544. Its totient is φ = 18006912.

The previous prime is 52520717. The next prime is 52520729. The reversal of 52520720 is 2702525.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (52520729) 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, 46334 + ... + 47453.

Almost surely, 2^52520720 is an apocalyptic number.

It is an amenable number.

52520720 is an abundant number, since it is smaller than the sum of its proper divisors (87035824).

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

52520720 is a wasteful number, since it uses less digits than its factorization.

52520720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93807 (or 93801 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 52520720 is about 7247.1180478863. The cubic root of 52520720 is about 374.4928730203.

The spelling of 52520720 in words is "fifty-two million, five hundred twenty thousand, seven hundred twenty".