25455048574 has 4 divisors (see below), whose sum is σ = 38182572864. Its totient is φ = 12727524286.

The previous prime is 25455048551. The next prime is 25455048587. The reversal of 25455048574 is 47584055452.

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

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 6363762142 + ... + 6363762145.

It is an arithmetic number, because the mean of its divisors is an integer number (9545643216).

Almost surely, 2^25455048574 is an apocalyptic number.

25455048574 is a deficient number, since it is larger than the sum of its proper divisors (12727524290).

25455048574 is a wasteful number, since it uses less digits than its factorization.

25455048574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12727524289.

The product of its (nonzero) digits is 4480000, while the sum is 49.

The spelling of 25455048574 in words is "twenty-five billion, four hundred fifty-five million, forty-eight thousand, five hundred seventy-four".