625975 has 24 divisors (see below), whose sum is σ = 917600. Its totient is φ = 423360.

The previous prime is 625969. The next prime is 625979. The reversal of 625975 is 579526.

It is not a de Polignac number, because 625975 - 2⁵ = 625943 is a prime.

It is an Ulam number.

625975 is a lucky number.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 625975.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625979) 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 23 ways as a sum of consecutive naturals, for example, 8539 + ... + 8611.

2⁶²⁵⁹⁷⁵ is an apocalyptic number.

625975 is a deficient number, since it is larger than the sum of its proper divisors (291625).

625975 is an equidigital number, since it uses as much as digits as its factorization.

625975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104 (or 85 counting only the distinct ones).

The product of its digits is 18900, while the sum is 34.

The square root of 625975 is about 791.1858188820. The cubic root of 625975 is about 85.5432336096.

It can be divided in two parts, 625 and 975, that added together give a square (1600 = 40²).

The spelling of 625975 in words is "six hundred twenty-five thousand, nine hundred seventy-five".