25918945120 has 48 divisors (see below), whose sum is σ = 61244080128. Its totient is φ = 10365788160.

The previous prime is 25918945103. The next prime is 25918945163. The reversal of 25918945120 is 2154981952.

It is a happy number.

It is a super-2 number, since 2×25918945120² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1300672 + ... + 1320448.

It is an arithmetic number, because the mean of its divisors is an integer number (1275918336).

Almost surely, 2^25918945120 is an apocalyptic number.

25918945120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25918945120 is an abundant number, since it is smaller than the sum of its proper divisors (35325135008).

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

25918945120 is a wasteful number, since it uses less digits than its factorization.

25918945120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27983 (or 27975 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 46.

The spelling of 25918945120 in words is "twenty-five billion, nine hundred eighteen million, nine hundred forty-five thousand, one hundred twenty".