255889125780 has 24 divisors (see below), whose sum is σ = 716489552352. Its totient is φ = 68237100192.

The previous prime is 255889125763. The next prime is 255889125797. The reversal of 255889125780 is 87521988552.

It is an interprime number because it is at equal distance from previous prime (255889125763) and next prime (255889125797).

It is a Harshad number since it is a multiple of its sum of digits (60), and also a Moran number because the ratio is a prime number: 4264818763 = 255889125780 / (2 + 5 + 5 + 8 + 8 + 9 + 1 + 2 + 5 + 7 + 8 + 0).

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, 2132409322 + ... + 2132409441.

It is an arithmetic number, because the mean of its divisors is an integer number (29853731348).

Almost surely, 2^255889125780 is an apocalyptic number.

255889125780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255889125780 is an abundant number, since it is smaller than the sum of its proper divisors (460600426572).

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

255889125780 is a wasteful number, since it uses less digits than its factorization.

255889125780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4264818775 (or 4264818773 counting only the distinct ones).

The product of its (nonzero) digits is 16128000, while the sum is 60.

The spelling of 255889125780 in words is "two hundred fifty-five billion, eight hundred eighty-nine million, one hundred twenty-five thousand, seven hundred eighty".