625457 has 8 divisors (see below), whose sum is σ = 720000. Its totient is φ = 532224.

The previous prime is 625451. The next prime is 625477. The reversal of 625457 is 754526.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 625457 - 2¹⁸ = 363313 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 625457.

It is not an unprimeable number, because it can be changed into a prime (625451) 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, 1169 + ... + 1617.

It is an arithmetic number, because the mean of its divisors is an integer number (90000).

2⁶²⁵⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

625457 is a deficient number, since it is larger than the sum of its proper divisors (94543).

625457 is a wasteful number, since it uses less digits than its factorization.

625457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655.

The product of its digits is 8400, while the sum is 29.

The square root of 625457 is about 790.8583944045. The cubic root of 625457 is about 85.5196311636.

The spelling of 625457 in words is "six hundred twenty-five thousand, four hundred fifty-seven".