25488451415 has 16 divisors (see below), whose sum is σ = 34971435840. Its totient is φ = 17469872640.

The previous prime is 25488451411. The next prime is 25488451459. The reversal of 25488451415 is 51415488452.

It is not a de Polignac number, because 25488451415 - 2² = 25488451411 is a prime.

It is a super-2 number, since 2×25488451415² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25488451415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25488451411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86210 + ... + 241679.

It is an arithmetic number, because the mean of its divisors is an integer number (2185714740).

Almost surely, 2^25488451415 is an apocalyptic number.

25488451415 is a deficient number, since it is larger than the sum of its proper divisors (9482984425).

25488451415 is a wasteful number, since it uses less digits than its factorization.

25488451415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330122.

The product of its digits is 1024000, while the sum is 47.

The spelling of 25488451415 in words is "twenty-five billion, four hundred eighty-eight million, four hundred fifty-one thousand, four hundred fifteen".