225398771304252 has 96 divisors (see below), whose sum is σ = 647496936059904. Its totient is φ = 59427655257600.

The previous prime is 225398771304211. The next prime is 225398771304253. The reversal of 225398771304252 is 252403177893522.

It is a super-2 number, since 2×225398771304252² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225398771304253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27979449 + ... + 35123312.

It is an arithmetic number, because the mean of its divisors is an integer number (6744759750624).

Almost surely, 2^{225398771304252} is an apocalyptic number.

It is an amenable number.

225398771304252 is an abundant number, since it is smaller than the sum of its proper divisors (422098164755652).

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

225398771304252 is a wasteful number, since it uses less digits than its factorization.

225398771304252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63106059 (or 63106057 counting only the distinct ones).

The product of its (nonzero) digits is 50803200, while the sum is 60.

The spelling of 225398771304252 in words is "two hundred twenty-five trillion, three hundred ninety-eight billion, seven hundred seventy-one million, three hundred four thousand, two hundred fifty-two".