25005453697 has 32 divisors (see below), whose sum is σ = 32308733952. Its totient is φ = 18846584064.

The previous prime is 25005453679. The next prime is 25005453727. The reversal of 25005453697 is 79635450052.

It is not a de Polignac number, because 25005453697 - 2²³ = 24997065089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25005453607) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11458 + ... + 223924.

It is an arithmetic number, because the mean of its divisors is an integer number (1009647936).

Almost surely, 2^25005453697 is an apocalyptic number.

It is an amenable number.

25005453697 is a deficient number, since it is larger than the sum of its proper divisors (7303280255).

25005453697 is a wasteful number, since it uses less digits than its factorization.

25005453697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212557.

The product of its (nonzero) digits is 1134000, while the sum is 46.

The spelling of 25005453697 in words is "twenty-five billion, five million, four hundred fifty-three thousand, six hundred ninety-seven".