625455 has 32 divisors (see below), whose sum is σ = 1149120. Its totient is φ = 322560.

The previous prime is 625451. The next prime is 625477. The reversal of 625455 is 554526.

It is not a de Polignac number, because 625455 - 2² = 625451 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

625455 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 625455.

It is not an unprimeable number, because it can be changed into a prime (625451) 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 31 ways as a sum of consecutive naturals, for example, 5479 + ... + 5591.

It is an arithmetic number, because the mean of its divisors is an integer number (35910).

2⁶²⁵⁴⁵⁵ is an apocalyptic number.

625455 is a deficient number, since it is larger than the sum of its proper divisors (523665).

625455 is a wasteful number, since it uses less digits than its factorization.

625455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 162 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 625455 is about 790.8571299546. The cubic root of 625455 is about 85.5195400092.

The spelling of 625455 in words is "six hundred twenty-five thousand, four hundred fifty-five".