25359254943 has 48 divisors (see below), whose sum is σ = 40535199360. Its totient is φ = 13966220800.

The previous prime is 25359254941. The next prime is 25359254957. The reversal of 25359254943 is 34945295352.

It is not a de Polignac number, because 25359254943 - 2¹ = 25359254941 is a prime.

It is a super-2 number, since 2×25359254943² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25359254941) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 230728 + ... + 322418.

It is an arithmetic number, because the mean of its divisors is an integer number (844483320).

Almost surely, 2^25359254943 is an apocalyptic number.

25359254943 is a deficient number, since it is larger than the sum of its proper divisors (15175944417).

25359254943 is a wasteful number, since it uses less digits than its factorization.

25359254943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91768 (or 91751 counting only the distinct ones).

The product of its digits is 5832000, while the sum is 51.

The spelling of 25359254943 in words is "twenty-five billion, three hundred fifty-nine million, two hundred fifty-four thousand, nine hundred forty-three".