625663157 has 12 divisors (see below), whose sum is σ = 732922848. Its totient is φ = 523192800.

The previous prime is 625663123. The next prime is 625663163. The reversal of 625663157 is 751366526.

It is not a de Polignac number, because 625663157 - 2¹⁴ = 625646773 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625663177) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14819 + ... + 38352.

It is an arithmetic number, because the mean of its divisors is an integer number (61076904).

Almost surely, 2^625663157 is an apocalyptic number.

It is an amenable number.

625663157 is a deficient number, since it is larger than the sum of its proper divisors (107259691).

625663157 is an equidigital number, since it uses as much as digits as its factorization.

625663157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53260 (or 53219 counting only the distinct ones).

The product of its digits is 226800, while the sum is 41.

The square root of 625663157 is about 25013.2596236476. The cubic root of 625663157 is about 855.2902617874.

The spelling of 625663157 in words is "six hundred twenty-five million, six hundred sixty-three thousand, one hundred fifty-seven".