225538339257 has 72 divisors (see below), whose sum is σ = 409572491328. Its totient is φ = 117067959360.

The previous prime is 225538339249. The next prime is 225538339289. The reversal of 225538339257 is 752933835522.

225538339257 is a `hidden beast` number, since 2 + 2 + 5 + 5 + 383 + 3 + 9 + 257 = 666.

It is not a de Polignac number, because 225538339257 - 2³ = 225538339249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225538339237) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 9951943 + ... + 9974579.

It is an arithmetic number, because the mean of its divisors is an integer number (5688506824).

Almost surely, 2^225538339257 is an apocalyptic number.

It is an amenable number.

225538339257 is a deficient number, since it is larger than the sum of its proper divisors (184034152071).

225538339257 is a wasteful number, since it uses less digits than its factorization.

225538339257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23979 (or 23965 counting only the distinct ones).

The product of its digits is 13608000, while the sum is 54.

The spelling of 225538339257 in words is "two hundred twenty-five billion, five hundred thirty-eight million, three hundred thirty-nine thousand, two hundred fifty-seven".