25592191942 has 4 divisors (see below), whose sum is σ = 38388287916. Its totient is φ = 12796095970.

The previous prime is 25592191921. The next prime is 25592191957. The reversal of 25592191942 is 24919129552.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6398047984 + ... + 6398047987.

It is an arithmetic number, because the mean of its divisors is an integer number (9597071979).

Almost surely, 2^25592191942 is an apocalyptic number.

25592191942 is a deficient number, since it is larger than the sum of its proper divisors (12796095974).

25592191942 is a wasteful number, since it uses less digits than its factorization.

25592191942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12796095973.

The product of its digits is 583200, while the sum is 49.

The spelling of 25592191942 in words is "twenty-five billion, five hundred ninety-two million, one hundred ninety-one thousand, nine hundred forty-two".