52561964 has 48 divisors (see below), whose sum is σ = 113940288. Its totient is φ = 20659968.

The previous prime is 52561921. The next prime is 52561981. The reversal of 52561964 is 46916525.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71342 + ... + 72074.

It is an arithmetic number, because the mean of its divisors is an integer number (2373756).

Almost surely, 2^52561964 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52561964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56970144).

52561964 is an abundant number, since it is smaller than the sum of its proper divisors (61378324).

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

52561964 is a wasteful number, since it uses less digits than its factorization.

52561964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954 (or 952 counting only the distinct ones).

The product of its digits is 64800, while the sum is 38.

The square root of 52561964 is about 7249.9630343885. The cubic root of 52561964 is about 374.5908758829.

The spelling of 52561964 in words is "fifty-two million, five hundred sixty-one thousand, nine hundred sixty-four".