25456085651 has 8 divisors (see below), whose sum is σ = 27104083920. Its totient is φ = 23824818688.

The previous prime is 25456085647. The next prime is 25456085723. The reversal of 25456085651 is 15658065452.

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 25456085651 - 2² = 25456085647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25456085596 and 25456085605.

It is not an unprimeable number, because it can be changed into a prime (25456087651) 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, 4179686 + ... + 4185771.

It is an arithmetic number, because the mean of its divisors is an integer number (3388010490).

Almost surely, 2^25456085651 is an apocalyptic number.

25456085651 is a deficient number, since it is larger than the sum of its proper divisors (1647998269).

25456085651 is a wasteful number, since it uses less digits than its factorization.

25456085651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8365653.

The product of its (nonzero) digits is 1440000, while the sum is 47.

The spelling of 25456085651 in words is "twenty-five billion, four hundred fifty-six million, eighty-five thousand, six hundred fifty-one".