2625425664 has 72 divisors (see below), whose sum is σ = 6996612000. Its totient is φ = 873996288.

The previous prime is 2625425659. The next prime is 2625425707. The reversal of 2625425664 is 4665245262.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 748587 + ... + 752085.

Almost surely, 2^2625425664 is an apocalyptic number.

2625425664 is a gapful number since it is divisible by the number (24) 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 2625425664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3498306000).

2625425664 is an abundant number, since it is smaller than the sum of its proper divisors (4371186336).

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

2625425664 is an equidigital number, since it uses as much as digits as its factorization.

2625425664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4495 (or 4481 counting only the distinct ones).

The product of its digits is 691200, while the sum is 42.

The square root of 2625425664 is about 51238.9077166951. The cubic root of 2625425664 is about 1379.5366476336.

The spelling of 2625425664 in words is "two billion, six hundred twenty-five million, four hundred twenty-five thousand, six hundred sixty-four".