252570156 has 24 divisors (see below), whose sum is σ = 623997360. Its totient is φ = 79237632.

The previous prime is 252570137. The next prime is 252570161. The reversal of 252570156 is 651075252.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 618841 + ... + 619248.

It is an arithmetic number, because the mean of its divisors is an integer number (25999890).

Almost surely, 2^252570156 is an apocalyptic number.

It is an amenable number.

252570156 is an abundant number, since it is smaller than the sum of its proper divisors (371427204).

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

252570156 is a wasteful number, since it uses less digits than its factorization.

252570156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238113 (or 1238111 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 252570156 is about 15892.4559461400. The cubic root of 252570156 is about 632.1119647544. Note that the first 3 decimals are identical.

The spelling of 252570156 in words is "two hundred fifty-two million, five hundred seventy thousand, one hundred fifty-six".