625525 has 12 divisors (see below), whose sum is σ = 785664. Its totient is φ = 494000.

The previous prime is 625517. The next prime is 625529. The reversal of 625525 is 525526.

It is not a de Polignac number, because 625525 - 2³ = 625517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 625525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625529) 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 11 ways as a sum of consecutive naturals, for example, 3180 + ... + 3370.

It is an arithmetic number, because the mean of its divisors is an integer number (65472).

2⁶²⁵⁵²⁵ is an apocalyptic number.

It is an amenable number.

625525 is a deficient number, since it is larger than the sum of its proper divisors (160139).

625525 is a wasteful number, since it uses less digits than its factorization.

625525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332 (or 327 counting only the distinct ones).

The product of its digits is 3000, while the sum is 25.

The square root of 625525 is about 790.9013844975. The cubic root of 625525 is about 85.5227302971.

Subtracting from 625525 its reverse (525526), we obtain a palindrome (99999).

The spelling of 625525 in words is "six hundred twenty-five thousand, five hundred twenty-five".