625775 has 6 divisors (see below), whose sum is σ = 775992. Its totient is φ = 500600.

The previous prime is 625763. The next prime is 625777. The reversal of 625775 is 577526.

It is a happy number.

It is not a de Polignac number, because 625775 - 2¹² = 621679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12491 + ... + 12540.

It is an arithmetic number, because the mean of its divisors is an integer number (129332).

2⁶²⁵⁷⁷⁵ is an apocalyptic number.

625775 is a deficient number, since it is larger than the sum of its proper divisors (150217).

625775 is a wasteful number, since it uses less digits than its factorization.

625775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25041 (or 25036 counting only the distinct ones).

The product of its digits is 14700, while the sum is 32.

The square root of 625775 is about 791.0594162261. The cubic root of 625775 is about 85.5341222398.

The spelling of 625775 in words is "six hundred twenty-five thousand, seven hundred seventy-five".