25874574492 has 48 divisors (see below), whose sum is σ = 65034601632. Its totient is φ = 7959394560.

The previous prime is 25874574457. The next prime is 25874574559. The reversal of 25874574492 is 29447547852.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 670918 + ... + 708434.

It is an arithmetic number, because the mean of its divisors is an integer number (1354887534).

Almost surely, 2^25874574492 is an apocalyptic number.

It is an amenable number.

25874574492 is an abundant number, since it is smaller than the sum of its proper divisors (39160027140).

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

25874574492 is a wasteful number, since it uses less digits than its factorization.

25874574492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41958 (or 41956 counting only the distinct ones).

The product of its digits is 22579200, while the sum is 57.

The spelling of 25874574492 in words is "twenty-five billion, eight hundred seventy-four million, five hundred seventy-four thousand, four hundred ninety-two".