25770017560 has 64 divisors (see below), whose sum is σ = 66283499520. Its totient is φ = 8833069440.

The previous prime is 25770017531. The next prime is 25770017563. The reversal of 25770017560 is 6571007752.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25770017563) 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, 1275457 + ... + 1295503.

It is an arithmetic number, because the mean of its divisors is an integer number (1035679680).

Almost surely, 2^25770017560 is an apocalyptic number.

25770017560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25770017560 is an abundant number, since it is smaller than the sum of its proper divisors (40513481960).

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

25770017560 is a wasteful number, since it uses less digits than its factorization.

25770017560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24656 (or 24652 counting only the distinct ones).

The product of its (nonzero) digits is 102900, while the sum is 40.

The spelling of 25770017560 in words is "twenty-five billion, seven hundred seventy million, seventeen thousand, five hundred sixty".