2625685920 has 576 divisors, whose sum is σ = 10818033408. Its totient is φ = 571392000.

The previous prime is 2625685903. The next prime is 2625685927. The reversal of 2625685920 is 295865262.

2625685920 is a `hidden beast` number, since 2 + 6 + 2 + 56 + 8 + 592 + 0 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (2625685927) 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 95 ways as a sum of consecutive naturals, for example, 8442565 + ... + 8442875.

It is an arithmetic number, because the mean of its divisors is an integer number (18781308).

Almost surely, 2^2625685920 is an apocalyptic number.

2625685920 is a gapful number since it is divisible by the number (20) 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 2625685920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5409016704).

2625685920 is an abundant number, since it is smaller than the sum of its proper divisors (8192347488).

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

2625685920 is a wasteful number, since it uses less digits than its factorization.

2625685920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The square root of 2625685920 is about 51241.4472863521. The cubic root of 2625685920 is about 1379.5822301883.

The spelling of 2625685920 in words is "two billion, six hundred twenty-five million, six hundred eighty-five thousand, nine hundred twenty".