25254989180 has 12 divisors (see below), whose sum is σ = 53035477320. Its totient is φ = 10101995664.

The previous prime is 25254989173. The next prime is 25254989197. The reversal of 25254989180 is 8198945252.

It is a happy number.

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 3 ways as a sum of consecutive naturals, for example, 631374710 + ... + 631374749.

It is an arithmetic number, because the mean of its divisors is an integer number (4419623110).

Almost surely, 2^25254989180 is an apocalyptic number.

25254989180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25254989180 is an abundant number, since it is smaller than the sum of its proper divisors (27780488140).

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

25254989180 is a wasteful number, since it uses less digits than its factorization.

25254989180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262749468 (or 1262749466 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 53.

The spelling of 25254989180 in words is "twenty-five billion, two hundred fifty-four million, nine hundred eighty-nine thousand, one hundred eighty".