625459725 has 120 divisors (see below), whose sum is σ = 1295265312. Its totient is φ = 295747200.

The previous prime is 625459721. The next prime is 625459741. The reversal of 625459725 is 527954526.

625459725 is a `hidden beast` number, since 6 + 2 + 54 + 597 + 2 + 5 = 666.

It is not a de Polignac number, because 625459725 - 2² = 625459721 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625459721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 957499 + ... + 958151.

Almost surely, 2^625459725 is an apocalyptic number.

It is an amenable number.

625459725 is an abundant number, since it is smaller than the sum of its proper divisors (669805587).

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

625459725 is a wasteful number, since it uses less digits than its factorization.

625459725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729 (or 715 counting only the distinct ones).

The product of its digits is 756000, while the sum is 45.

The square root of 625459725 is about 25009.1928098449. The cubic root of 625459725 is about 855.1975536117.

The spelling of 625459725 in words is "six hundred twenty-five million, four hundred fifty-nine thousand, seven hundred twenty-five".