25247626780 has 48 divisors (see below), whose sum is σ = 54870772320. Its totient is φ = 9746811648.

The previous prime is 25247626771. The next prime is 25247626787. The reversal of 25247626780 is 8762674252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25247626787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1684399 + ... + 1699321.

It is an arithmetic number, because the mean of its divisors is an integer number (1143141090).

Almost surely, 2^25247626780 is an apocalyptic number.

25247626780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25247626780 is an abundant number, since it is smaller than the sum of its proper divisors (29623145540).

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

25247626780 is a wasteful number, since it uses less digits than its factorization.

25247626780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17878 (or 17876 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 49.

The spelling of 25247626780 in words is "twenty-five billion, two hundred forty-seven million, six hundred twenty-six thousand, seven hundred eighty".