25056007481 has 16 divisors (see below), whose sum is σ = 27072517248. Its totient is φ = 23102880000.

The previous prime is 25056007477. The next prime is 25056007519. The reversal of 25056007481 is 18470065052.

It is a cyclic number.

It is not a de Polignac number, because 25056007481 - 2² = 25056007477 is a prime.

It is a super-2 number, since 2×25056007481² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25056007451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212156 + ... + 308418.

It is an arithmetic number, because the mean of its divisors is an integer number (1692032328).

Almost surely, 2^25056007481 is an apocalyptic number.

It is an amenable number.

25056007481 is a deficient number, since it is larger than the sum of its proper divisors (2016509767).

25056007481 is a wasteful number, since it uses less digits than its factorization.

25056007481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96592.

The product of its (nonzero) digits is 67200, while the sum is 38.

The spelling of 25056007481 in words is "twenty-five billion, fifty-six million, seven thousand, four hundred eighty-one".