625796091 has 8 divisors (see below), whose sum is σ = 927105360. Its totient is φ = 417197376.

The previous prime is 625796047. The next prime is 625796099. The reversal of 625796091 is 190697526.

It is a happy number.

It is not a de Polignac number, because 625796091 - 2²⁵ = 592241659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (625796099) 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, 11588790 + ... + 11588843.

It is an arithmetic number, because the mean of its divisors is an integer number (115888170).

Almost surely, 2^625796091 is an apocalyptic number.

625796091 is a deficient number, since it is larger than the sum of its proper divisors (301309269).

625796091 is a wasteful number, since it uses less digits than its factorization.

625796091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23177642 (or 23177636 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 625796091 is about 25015.9167531394. The cubic root of 625796091 is about 855.3508317085.

The spelling of 625796091 in words is "six hundred twenty-five million, seven hundred ninety-six thousand, ninety-one".