25432294475819 has 16 divisors (see below), whose sum is σ = 33572960165376. Its totient is φ = 18651644534400.

The previous prime is 25432294475789. The next prime is 25432294475843. The reversal of 25432294475819 is 91857449223452.

It is a cyclic number.

It is not a de Polignac number, because 25432294475819 - 2⁸ = 25432294475563 is a prime.

It is a super-2 number, since 2×25432294475819² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25432294475219) 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, 9714396887 + ... + 9714399504.

It is an arithmetic number, because the mean of its divisors is an integer number (2098310010336).

Almost surely, 2^{25432294475819} is an apocalyptic number.

25432294475819 is a deficient number, since it is larger than the sum of its proper divisors (8140665689557).

25432294475819 is a wasteful number, since it uses less digits than its factorization.

25432294475819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19428796426.

The product of its digits is 174182400, while the sum is 65.

The spelling of 25432294475819 in words is "twenty-five trillion, four hundred thirty-two billion, two hundred ninety-four million, four hundred seventy-five thousand, eight hundred nineteen".