252155121204 has 48 divisors (see below), whose sum is σ = 679345778048. Its totient is φ = 71301593088.

The previous prime is 252155121199. The next prime is 252155121221. The reversal of 252155121204 is 402121551252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15465289 + ... + 15481584.

Almost surely, 2^252155121204 is an apocalyptic number.

It is an amenable number.

252155121204 is an abundant number, since it is smaller than the sum of its proper divisors (427190656844).

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

252155121204 is a wasteful number, since it uses less digits than its factorization.

252155121204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30946984 (or 30946982 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

Adding to 252155121204 its reverse (402121551252), we get a palindrome (654276672456).

The spelling of 252155121204 in words is "two hundred fifty-two billion, one hundred fifty-five million, one hundred twenty-one thousand, two hundred four".