2521620260 has 24 divisors (see below), whose sum is σ = 5297293176. Its totient is φ = 1008288000.

The previous prime is 2521620247. The next prime is 2521620281. The reversal of 2521620260 is 620261252.

2521620260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 521026276 + 2000593984 = 22826^2 + 44728^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39014 + ... + 81026.

It is an arithmetic number, because the mean of its divisors is an integer number (220720549).

Almost surely, 2^2521620260 is an apocalyptic number.

2521620260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2521620260 is an abundant number, since it is smaller than the sum of its proper divisors (2775672916).

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

2521620260 is a wasteful number, since it uses less digits than its factorization.

2521620260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45023 (or 45021 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 2521620260 is about 50215.7371747145. The cubic root of 2521620260 is about 1361.1100114548.

The spelling of 2521620260 in words is "two billion, five hundred twenty-one million, six hundred twenty thousand, two hundred sixty".