625257 has 6 divisors (see below), whose sum is σ = 903162. Its totient is φ = 416832.

The previous prime is 625253. The next prime is 625267. The reversal of 625257 is 752526.

It can be written as a sum of positive squares in only one way, i.e., 549081 + 76176 = 741^2 + 276^2 .

It is not a de Polignac number, because 625257 - 2² = 625253 is a prime.

It is a super-3 number, since 3×625257³ = 733325762201548779, which contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 625257.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 625257.

It is not an unprimeable number, because it can be changed into a prime (625253) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34728 + ... + 34745.

It is an arithmetic number, because the mean of its divisors is an integer number (150527).

2⁶²⁵²⁵⁷ is an apocalyptic number.

It is an amenable number.

625257 is a deficient number, since it is larger than the sum of its proper divisors (277905).

625257 is a wasteful number, since it uses less digits than its factorization.

625257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69479 (or 69476 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 625257 is about 790.7319394080. The cubic root of 625257 is about 85.5105147631.

The spelling of 625257 in words is "six hundred twenty-five thousand, two hundred fifty-seven".