252172222704 has 80 divisors (see below), whose sum is σ = 735693780640. Its totient is φ = 82679408640.

The previous prime is 252172222667. The next prime is 252172222711. The reversal of 252172222704 is 407222271252.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 4758337 + ... + 4811040.

It is an arithmetic number, because the mean of its divisors is an integer number (9196172258).

Almost surely, 2^252172222704 is an apocalyptic number.

252172222704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

252172222704 is an abundant number, since it is smaller than the sum of its proper divisors (483521557936).

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

252172222704 is a wasteful number, since it uses less digits than its factorization.

252172222704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9569455 (or 9569443 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 36.

Adding to 252172222704 its reverse (407222271252), we get a palindrome (659394493956).

The spelling of 252172222704 in words is "two hundred fifty-two billion, one hundred seventy-two million, two hundred twenty-two thousand, seven hundred four".