25090854242 has 8 divisors (see below), whose sum is σ = 37711106496. Its totient is φ = 12520485412.

The previous prime is 25090854193. The next prime is 25090854247. The reversal of 25090854242 is 24245809052.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 25090854242.

It is not an unprimeable number, because it can be changed into a prime (25090854247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12469598 + ... + 12471609.

It is an arithmetic number, because the mean of its divisors is an integer number (4713888312).

Almost surely, 2^25090854242 is an apocalyptic number.

25090854242 is a deficient number, since it is larger than the sum of its proper divisors (12620252254).

25090854242 is a wasteful number, since it uses less digits than its factorization.

25090854242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24941712.

The product of its (nonzero) digits is 230400, while the sum is 41.

The spelling of 25090854242 in words is "twenty-five billion, ninety million, eight hundred fifty-four thousand, two hundred forty-two".