25480296391 has 8 divisors (see below), whose sum is σ = 27799263504. Its totient is φ = 23161758720.

The previous prime is 25480296301. The next prime is 25480296421. The reversal of 25480296391 is 19369208452.

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

It is a cyclic number.

It is not a de Polignac number, because 25480296391 - 2⁷ = 25480296263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25480296301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23665 + ... + 226981.

It is an arithmetic number, because the mean of its divisors is an integer number (3474907938).

Almost surely, 2^25480296391 is an apocalyptic number.

25480296391 is a deficient number, since it is larger than the sum of its proper divisors (2318967113).

25480296391 is a wasteful number, since it uses less digits than its factorization.

25480296391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214721.

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 25480296391 in words is "twenty-five billion, four hundred eighty million, two hundred ninety-six thousand, three hundred ninety-one".