25576030780 has 12 divisors (see below), whose sum is σ = 53709664680. Its totient is φ = 10230412304.

The previous prime is 25576030729. The next prime is 25576030811. The reversal of 25576030780 is 8703067552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 639400750 + ... + 639400789.

It is an arithmetic number, because the mean of its divisors is an integer number (4475805390).

Almost surely, 2^25576030780 is an apocalyptic number.

25576030780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25576030780 is an abundant number, since it is smaller than the sum of its proper divisors (28133633900).

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

25576030780 is a wasteful number, since it uses less digits than its factorization.

25576030780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278801548 (or 1278801546 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 43.

The spelling of 25576030780 in words is "twenty-five billion, five hundred seventy-six million, thirty thousand, seven hundred eighty".