25956233842 has 24 divisors (see below), whose sum is σ = 49408343280. Its totient is φ = 10112817960.

The previous prime is 25956233827. The next prime is 25956233843. The reversal of 25956233842 is 24833265952.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (25956233843) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12037992 + ... + 12040147.

It is an arithmetic number, because the mean of its divisors is an integer number (2058680970).

Almost surely, 2^25956233842 is an apocalyptic number.

25956233842 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

25956233842 is a deficient number, since it is larger than the sum of its proper divisors (23452109438).

25956233842 is a wasteful number, since it uses less digits than its factorization.

25956233842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24078166 (or 24078159 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 49.

The spelling of 25956233842 in words is "twenty-five billion, nine hundred fifty-six million, two hundred thirty-three thousand, eight hundred forty-two".