225801172970 has 16 divisors (see below), whose sum is σ = 414110831400. Its totient is φ = 88616309184.

The previous prime is 225801172951. The next prime is 225801172979. The reversal of 225801172970 is 79271108522.

It can be written as a sum of positive squares in 4 ways, for example, as 163650184369 + 62150988601 = 404537^2 + 249301^2 .

It is not an unprimeable number, because it can be changed into a prime (225801172979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213019445 + ... + 213020504.

Almost surely, 2^225801172970 is an apocalyptic number.

225801172970 is a deficient number, since it is larger than the sum of its proper divisors (188309658430).

225801172970 is a wasteful number, since it uses less digits than its factorization.

225801172970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426040009.

The product of its (nonzero) digits is 141120, while the sum is 44.

The spelling of 225801172970 in words is "two hundred twenty-five billion, eight hundred one million, one hundred seventy-two thousand, nine hundred seventy".