25473912980 has 24 divisors (see below), whose sum is σ = 53565916488. Its totient is φ = 10176098688.

The previous prime is 25473912917. The next prime is 25473913013. The reversal of 25473912980 is 8921937452.

It can be written as a sum of positive squares in 4 ways, for example, as 9987603844 + 15486309136 = 99938^2 + 124444^2 .

It is a super-2 number, since 2×25473912980² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 826139 + ... + 856418.

It is an arithmetic number, because the mean of its divisors is an integer number (2231913187).

Almost surely, 2^25473912980 is an apocalyptic number.

25473912980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25473912980 is an abundant number, since it is smaller than the sum of its proper divisors (28092003508).

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

25473912980 is a wasteful number, since it uses less digits than its factorization.

25473912980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683323 (or 1683321 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 25473912980 in words is "twenty-five billion, four hundred seventy-three million, nine hundred twelve thousand, nine hundred eighty".