117657225 has 96 divisors (see below), whose sum is σ = 254071040. Its totient is φ = 52254720.

The previous prime is 117657203. The next prime is 117657247. The reversal of 117657225 is 522756711.

117657225 is a `hidden beast` number, since 11 + 76 + 572 + 2 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (117657203) and next prime (117657247).

It is not a de Polignac number, because 117657225 - 2⁶ = 117657161 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 117657225.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 174489 + ... + 175161.

Almost surely, 2^117657225 is an apocalyptic number.

117657225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117657225 is an abundant number, since it is smaller than the sum of its proper divisors (136413815).

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

117657225 is a wasteful number, since it uses less digits than its factorization.

117657225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736 (or 725 counting only the distinct ones).

The product of its digits is 29400, while the sum is 36.

The square root of 117657225 is about 10846.9915183889. The cubic root of 117657225 is about 490.0114185872.

The spelling of 117657225 in words is "one hundred seventeen million, six hundred fifty-seven thousand, two hundred twenty-five".