252508278 has 32 divisors (see below), whose sum is σ = 569928960. Its totient is φ = 73878560.

The previous prime is 252508273. The next prime is 252508343. The reversal of 252508278 is 872805252.

It is a happy number.

252508278 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252508273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64050 + ... + 67877.

It is an arithmetic number, because the mean of its divisors is an integer number (17810280).

Almost surely, 2^252508278 is an apocalyptic number.

252508278 is an abundant number, since it is smaller than the sum of its proper divisors (317420682).

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

252508278 is a wasteful number, since it uses less digits than its factorization.

252508278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131972.

The product of its (nonzero) digits is 89600, while the sum is 39.

The square root of 252508278 is about 15890.5090541493. The cubic root of 252508278 is about 632.0603394694.

The spelling of 252508278 in words is "two hundred fifty-two million, five hundred eight thousand, two hundred seventy-eight".