626425 has 6 divisors (see below), whose sum is σ = 776798. Its totient is φ = 501120.

The previous prime is 626393. The next prime is 626443. The reversal of 626425 is 524626.

It can be written as a sum of positive squares in 3 ways, for example, as 7056 + 619369 = 84^2 + 787^2 .

It is not a de Polignac number, because 626425 - 2⁵ = 626393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 25057 = 626425 / (6 + 2 + 6 + 4 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 626425.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 626425.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12504 + ... + 12553.

2⁶²⁶⁴²⁵ is an apocalyptic number.

It is an amenable number.

626425 is a deficient number, since it is larger than the sum of its proper divisors (150373).

626425 is a wasteful number, since it uses less digits than its factorization.

626425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25067 (or 25062 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 626425 is about 791.4701510480. The cubic root of 626425 is about 85.5637270982.

The spelling of 626425 in words is "six hundred twenty-six thousand, four hundred twenty-five".