25531940700 has 216 divisors, whose sum is σ = 92070218240. Its totient is φ = 5797008000.

The previous prime is 25531940677. The next prime is 25531940711. The reversal of 25531940700 is 704913552.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 937881 + ... + 964719.

Almost surely, 2^25531940700 is an apocalyptic number.

25531940700 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 25531940700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46035109120).

25531940700 is an abundant number, since it is smaller than the sum of its proper divisors (66538277540).

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

25531940700 is a wasteful number, since it uses less digits than its factorization.

25531940700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27017 (or 27007 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The spelling of 25531940700 in words is "twenty-five billion, five hundred thirty-one million, nine hundred forty thousand, seven hundred".