2522520840 has 256 divisors, whose sum is σ = 9056747520. Its totient is φ = 549918720.

The previous prime is 2522520829. The next prime is 2522520853. The reversal of 2522520840 is 480252252.

It is a super-2 number, since 2×2522520840² = 12726222776468611200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2522520798 and 2522520807.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1900257 + ... + 1901583.

It is an arithmetic number, because the mean of its divisors is an integer number (35377920).

Almost surely, 2^2522520840 is an apocalyptic number.

2522520840 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 2522520840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4528373760).

2522520840 is an abundant number, since it is smaller than the sum of its proper divisors (6534226680).

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

2522520840 is a wasteful number, since it uses less digits than its factorization.

2522520840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1452 (or 1448 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 2522520840 is about 50224.7034834453. The cubic root of 2522520840 is about 1361.2720293149.

The spelling of 2522520840 in words is "two billion, five hundred twenty-two million, five hundred twenty thousand, eight hundred forty".