2500229072520 has 128 divisors (see below), whose sum is σ = 8341482816000. Its totient is φ = 666136880640.

The previous prime is 2500229072513. The next prime is 2500229072563. The reversal of 2500229072520 is 252709220052.

2500229072520 is a `hidden beast` number, since 2 + 500 + 22 + 90 + 7 + 25 + 20 = 666.

It is a super-2 number, since 2×2500229072520² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 194065 + ... + 2244575.

It is an arithmetic number, because the mean of its divisors is an integer number (65167834500).

Almost surely, 2^{2500229072520} is an apocalyptic number.

2500229072520 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 2500229072520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4170741408000).

2500229072520 is an abundant number, since it is smaller than the sum of its proper divisors (5841253743480).

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

2500229072520 is a wasteful number, since it uses less digits than its factorization.

2500229072520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051660 (or 2051650 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The spelling of 2500229072520 in words is "two trillion, five hundred billion, two hundred twenty-nine million, seventy-two thousand, five hundred twenty".