25542147126 has 32 divisors (see below), whose sum is σ = 52855084800. Its totient is φ = 8219020320.

The previous prime is 25542147101. The next prime is 25542147149. The reversal of 25542147126 is 62174124552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1477191 + ... + 1494381.

It is an arithmetic number, because the mean of its divisors is an integer number (1651721400).

Almost surely, 2^25542147126 is an apocalyptic number.

25542147126 is an abundant number, since it is smaller than the sum of its proper divisors (27312937674).

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

25542147126 is a wasteful number, since it uses less digits than its factorization.

25542147126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25764.

The product of its digits is 134400, while the sum is 39.

The spelling of 25542147126 in words is "twenty-five billion, five hundred forty-two million, one hundred forty-seven thousand, one hundred twenty-six".