25359254942 has 64 divisors (see below), whose sum is σ = 45772038144. Its totient is φ = 10309317120.

The previous prime is 25359254941. The next prime is 25359254957. The reversal of 25359254942 is 24945295352.

It is a super-2 number, since 2×25359254942² (a number of 22 digits) contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 5288498 + ... + 5293290.

It is an arithmetic number, because the mean of its divisors is an integer number (715188096).

Almost surely, 2^25359254942 is an apocalyptic number.

25359254942 is a deficient number, since it is larger than the sum of its proper divisors (20412783202).

25359254942 is a wasteful number, since it uses less digits than its factorization.

25359254942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5073.

The product of its digits is 3888000, while the sum is 50.

The spelling of 25359254942 in words is "twenty-five billion, three hundred fifty-nine million, two hundred fifty-four thousand, nine hundred forty-two".