25425603863 has 16 divisors (see below), whose sum is σ = 29345120640. Its totient is φ = 21786458400.

The previous prime is 25425603857. The next prime is 25425603877. The reversal of 25425603863 is 36830652452.

It is a cyclic number.

It is not a de Polignac number, because 25425603863 - 2⁶ = 25425603799 is a prime.

It is a super-2 number, since 2×25425603863² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25425603823) 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, 267593 + ... + 349938.

It is an arithmetic number, because the mean of its divisors is an integer number (1834070040).

Almost surely, 2^25425603863 is an apocalyptic number.

25425603863 is a deficient number, since it is larger than the sum of its proper divisors (3919516777).

25425603863 is a wasteful number, since it uses less digits than its factorization.

25425603863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617758.

The product of its (nonzero) digits is 1036800, while the sum is 44.

The spelling of 25425603863 in words is "twenty-five billion, four hundred twenty-five million, six hundred three thousand, eight hundred sixty-three".