52909988 has 6 divisors (see below), whose sum is σ = 92592486. Its totient is φ = 26454992.

The previous prime is 52909979. The next prime is 52909993. The reversal of 52909988 is 88990925.

It can be written as a sum of positive squares in only one way, i.e., 50013184 + 2896804 = 7072^2 + 1702^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6613745 + ... + 6613752.

It is an arithmetic number, because the mean of its divisors is an integer number (15432081).

Almost surely, 2^52909988 is an apocalyptic number.

It is an amenable number.

52909988 is a deficient number, since it is larger than the sum of its proper divisors (39682498).

52909988 is a wasteful number, since it uses less digits than its factorization.

52909988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13227501 (or 13227499 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 50.

The square root of 52909988 is about 7273.9252127032. The cubic root of 52909988 is about 375.4158066277.

The spelling of 52909988 in words is "fifty-two million, nine hundred nine thousand, nine hundred eighty-eight".