52251564 has 12 divisors (see below), whose sum is σ = 121920344. Its totient is φ = 17417184.

The previous prime is 52251559. The next prime is 52251581. The reversal of 52251564 is 46515225.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2177137 + ... + 2177160.

Almost surely, 2^52251564 is an apocalyptic number.

It is an amenable number.

52251564 is an abundant number, since it is smaller than the sum of its proper divisors (69668780).

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

52251564 is a wasteful number, since it uses less digits than its factorization.

52251564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4354304 (or 4354302 counting only the distinct ones).

The product of its digits is 12000, while the sum is 30.

The square root of 52251564 is about 7228.5243307331. The cubic root of 52251564 is about 373.8520485837.

Adding to 52251564 its reverse (46515225), we get a palindrome (98766789).

The spelling of 52251564 in words is "fifty-two million, two hundred fifty-one thousand, five hundred sixty-four".