625456 has 40 divisors (see below), whose sum is σ = 1361024. Its totient is φ = 276480.

The previous prime is 625451. The next prime is 625477. The reversal of 625456 is 654526.

625456 = 124² + 125² + ... + 155².

It is not an unprimeable number, because it can be changed into a prime (625451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6400 + ... + 6496.

2⁶²⁵⁴⁵⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 625456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (680512).

625456 is an abundant number, since it is smaller than the sum of its proper divisors (735568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

625456 is a wasteful number, since it uses less digits than its factorization.

625456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 143 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 625456 is about 790.8577621798. The cubic root of 625456 is about 85.5195855865.

It can be divided in two parts, 625 and 456, that added together give a triangular number (1081 = T₄₆).

The spelling of 625456 in words is "six hundred twenty-five thousand, four hundred fifty-six".