625445504 has 64 divisors (see below), whose sum is σ = 1335579840. Its totient is φ = 290697216.

The previous prime is 625445503. The next prime is 625445533. The reversal of 625445504 is 405544526.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (625445501) 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 7 ways as a sum of consecutive naturals, for example, 178877 + ... + 182339.

It is an arithmetic number, because the mean of its divisors is an integer number (20868435).

Almost surely, 2^625445504 is an apocalyptic number.

625445504 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 625445504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (667789920).

625445504 is an abundant number, since it is smaller than the sum of its proper divisors (710134336).

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

625445504 is a wasteful number, since it uses less digits than its factorization.

625445504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3577 (or 3565 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

The square root of 625445504 is about 25008.9084927751. The cubic root of 625445504 is about 855.1910720557.

The spelling of 625445504 in words is "six hundred twenty-five million, four hundred forty-five thousand, five hundred four".