25116022980 has 36 divisors (see below), whose sum is σ = 76185270252. Its totient is φ = 6697606080.

The previous prime is 25116022963. The next prime is 25116022991. The reversal of 25116022980 is 8922061152.

25116022980 is a `hidden beast` number, since 2 + 511 + 60 + 2 + 2 + 9 + 80 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9173425284 + 15942597696 = 95778^2 + 126264^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×25116022980² (a number of 22 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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69766551 + ... + 69766910.

It is an arithmetic number, because the mean of its divisors is an integer number (2116257507).

Almost surely, 2^25116022980 is an apocalyptic number.

25116022980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25116022980 is an abundant number, since it is smaller than the sum of its proper divisors (51069247272).

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

25116022980 is a wasteful number, since it uses less digits than its factorization.

25116022980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139533476 (or 139533471 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The spelling of 25116022980 in words is "twenty-five billion, one hundred sixteen million, twenty-two thousand, nine hundred eighty".