52521036 has 24 divisors (see below), whose sum is σ = 123928560. Its totient is φ = 17309952.

The previous prime is 52520981. The next prime is 52521047. The reversal of 52521036 is 63012525.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 52520997 and 52521015.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23521 + ... + 25656.

It is an arithmetic number, because the mean of its divisors is an integer number (5163690).

Almost surely, 2^52521036 is an apocalyptic number.

It is an amenable number.

52521036 is an abundant number, since it is smaller than the sum of its proper divisors (71407524).

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

52521036 is a wasteful number, since it uses less digits than its factorization.

52521036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49273 (or 49271 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 52521036 is about 7247.1398496234. The cubic root of 52521036 is about 374.4936240858.

The spelling of 52521036 in words is "fifty-two million, five hundred twenty-one thousand, thirty-six".