252557616 has 20 divisors (see below), whose sum is σ = 652440632. Its totient is φ = 84185856.

The previous prime is 252557611. The next prime is 252557653. The reversal of 252557616 is 616755252.

252557616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (252557611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2630761 + ... + 2630856.

Almost surely, 2^252557616 is an apocalyptic number.

It is an amenable number.

252557616 is an abundant number, since it is smaller than the sum of its proper divisors (399883016).

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

252557616 is a wasteful number, since it uses less digits than its factorization.

252557616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5261628 (or 5261622 counting only the distinct ones).

The product of its digits is 126000, while the sum is 39.

The square root of 252557616 is about 15892.0614144295. The cubic root of 252557616 is about 632.1015032185.

The spelling of 252557616 in words is "two hundred fifty-two million, five hundred fifty-seven thousand, six hundred sixteen".