25775830500 has 96 divisors (see below), whose sum is σ = 85781998848. Its totient is φ = 5891616000.

The previous prime is 25775830471. The next prime is 25775830511. The reversal of 25775830500 is 503857752.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1216921 + ... + 1237920.

It is an arithmetic number, because the mean of its divisors is an integer number (893562488).

Almost surely, 2^25775830500 is an apocalyptic number.

25775830500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25775830500 is an abundant number, since it is smaller than the sum of its proper divisors (60006168348).

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

25775830500 is a wasteful number, since it uses less digits than its factorization.

25775830500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2454870 (or 2454858 counting only the distinct ones).

The product of its (nonzero) digits is 294000, while the sum is 42.

The spelling of 25775830500 in words is "twenty-five billion, seven hundred seventy-five million, eight hundred thirty thousand, five hundred".