25442588545 has 16 divisors (see below), whose sum is σ = 33383613312. Its totient is φ = 18460949760.

The previous prime is 25442588471. The next prime is 25442588579. The reversal of 25442588545 is 54588524452.

It is not a de Polignac number, because 25442588545 - 2¹⁹ = 25442064257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25442588492 and 25442588501.

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, 510357 + ... + 557986.

It is an arithmetic number, because the mean of its divisors is an integer number (2086475832).

Almost surely, 2^25442588545 is an apocalyptic number.

It is an amenable number.

25442588545 is a deficient number, since it is larger than the sum of its proper divisors (7941024767).

25442588545 is a wasteful number, since it uses less digits than its factorization.

25442588545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068792.

The product of its digits is 10240000, while the sum is 52.

The spelling of 25442588545 in words is "twenty-five billion, four hundred forty-two million, five hundred eighty-eight thousand, five hundred forty-five".