52212560 has 20 divisors (see below), whose sum is σ = 121394388. Its totient is φ = 20884992.

The previous prime is 52212521. The next prime is 52212571. The reversal of 52212560 is 6521225.

It can be written as a sum of positive squares in 2 ways, for example, as 37405456 + 14807104 = 6116^2 + 3848^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

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, 326249 + ... + 326408.

Almost surely, 2^52212560 is an apocalyptic number.

It is an amenable number.

52212560 is an abundant number, since it is smaller than the sum of its proper divisors (69181828).

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

52212560 is a wasteful number, since it uses less digits than its factorization.

52212560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652670 (or 652664 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 52212560 is about 7225.8259043517. The cubic root of 52212560 is about 373.7590028517.

Adding to 52212560 its reverse (6521225), we get a palindrome (58733785).

The spelling of 52212560 in words is "fifty-two million, two hundred twelve thousand, five hundred sixty".