625688193 has 12 divisors (see below), whose sum is σ = 903361200. Its totient is φ = 385038576.

The previous prime is 625688191. The next prime is 625688197. The reversal of 625688193 is 391886526.

It is a happy number.

It is not a de Polignac number, because 625688193 - 2¹ = 625688191 is a prime.

It is not an unprimeable number, because it can be changed into a prime (625688191) 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, 616543 + ... + 617556.

It is an arithmetic number, because the mean of its divisors is an integer number (75280100).

Almost surely, 2^625688193 is an apocalyptic number.

It is an amenable number.

625688193 is a deficient number, since it is larger than the sum of its proper divisors (277673007).

625688193 is a wasteful number, since it uses less digits than its factorization.

625688193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234128 (or 1234115 counting only the distinct ones).

The product of its digits is 622080, while the sum is 48.

The square root of 625688193 is about 25013.7600732077. The cubic root of 625688193 is about 855.3016698223.

It can be divided in two parts, 6256 and 88193, that added together give a palindrome (94449).

The spelling of 625688193 in words is "six hundred twenty-five million, six hundred eighty-eight thousand, one hundred ninety-three".