25597351182942 has 96 divisors (see below), whose sum is σ = 69209358266880. Its totient is φ = 6642579303360.

The previous prime is 25597351182889. The next prime is 25597351182947. The reversal of 25597351182942 is 24928115379552.

25597351182942 is a `hidden beast` number, since 2 + 5 + 5 + 9 + 73 + 511 + 8 + 2 + 9 + 42 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 25597351182942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25597351182947) 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, 6933642 + ... + 9963437.

It is an arithmetic number, because the mean of its divisors is an integer number (720930815280).

Almost surely, 2^{25597351182942} is an apocalyptic number.

25597351182942 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

25597351182942 is an abundant number, since it is smaller than the sum of its proper divisors (43612007083938).

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

25597351182942 is a wasteful number, since it uses less digits than its factorization.

25597351182942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16898198 (or 16898195 counting only the distinct ones).

The product of its digits is 54432000, while the sum is 63.

The spelling of 25597351182942 in words is "twenty-five trillion, five hundred ninety-seven billion, three hundred fifty-one million, one hundred eighty-two thousand, nine hundred forty-two".