2522521860 has 96 divisors (see below), whose sum is σ = 7243501440. Its totient is φ = 655699968.

The previous prime is 2522521847. The next prime is 2522521861. The reversal of 2522521860 is 681252252.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2522521861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 386706 + ... + 393174.

It is an arithmetic number, because the mean of its divisors is an integer number (75453140).

Almost surely, 2^2522521860 is an apocalyptic number.

2522521860 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 2522521860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3621750720).

2522521860 is an abundant number, since it is smaller than the sum of its proper divisors (4720979580).

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

2522521860 is a wasteful number, since it uses less digits than its factorization.

2522521860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6645 (or 6643 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 2522521860 is about 50224.7136378098. The cubic root of 2522521860 is about 1361.2722127951.

It can be divided in two parts, 2522521 and 860, that added together give a triangular number (2523381 = T₂₂₄₆).

The spelling of 2522521860 in words is "two billion, five hundred twenty-two million, five hundred twenty-one thousand, eight hundred sixty".