25158390448 has 20 divisors (see below), whose sum is σ = 48948340320. Its totient is φ = 12526560704.

The previous prime is 25158390427. The next prime is 25158390461. The reversal of 25158390448 is 84409385152.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3285715 + ... + 3293362.

It is an arithmetic number, because the mean of its divisors is an integer number (2447417016).

Almost surely, 2^25158390448 is an apocalyptic number.

It is an amenable number.

25158390448 is a deficient number, since it is larger than the sum of its proper divisors (23789949872).

25158390448 is a wasteful number, since it uses less digits than its factorization.

25158390448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6579324 (or 6579318 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 49.

The spelling of 25158390448 in words is "twenty-five billion, one hundred fifty-eight million, three hundred ninety thousand, four hundred forty-eight".