52521552 has 60 divisors (see below), whose sum is σ = 152068020. Its totient is φ = 16902144.

The previous prime is 52521509. The next prime is 52521559. The reversal of 52521552 is 25512525.

It can be written as a sum of positive squares in 2 ways, for example, as 39388176 + 13133376 = 6276^2 + 3624^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52521559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2113 + ... + 10464.

It is an arithmetic number, because the mean of its divisors is an integer number (2534467).

Almost surely, 2^52521552 is an apocalyptic number.

It is an amenable number.

52521552 is an abundant number, since it is smaller than the sum of its proper divisors (99546468).

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

52521552 is a wasteful number, since it uses less digits than its factorization.

52521552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12620 (or 12611 counting only the distinct ones).

The product of its digits is 5000, while the sum is 27.

The square root of 52521552 is about 7247.1754497873. The cubic root of 52521552 is about 374.4948505028.

The spelling of 52521552 in words is "fifty-two million, five hundred twenty-one thousand, five hundred fifty-two".