25823408975 has 48 divisors (see below), whose sum is σ = 39476515008. Its totient is φ = 16317987840.

The previous prime is 25823408957. The next prime is 25823409011. The reversal of 25823408975 is 57980432852.

It is not a de Polignac number, because 25823408975 - 2⁶ = 25823408911 is a prime.

It is a super-2 number, since 2×25823408975² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1394477 + ... + 1412873.

It is an arithmetic number, because the mean of its divisors is an integer number (822427396).

Almost surely, 2^25823408975 is an apocalyptic number.

25823408975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25823408975 is a deficient number, since it is larger than the sum of its proper divisors (13653106033).

25823408975 is a wasteful number, since it uses less digits than its factorization.

25823408975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19044 (or 19039 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 53.

The spelling of 25823408975 in words is "twenty-five billion, eight hundred twenty-three million, four hundred eight thousand, nine hundred seventy-five".