25164460854 has 48 divisors (see below), whose sum is σ = 58820580000. Its totient is φ = 7729262208.

The previous prime is 25164460843. The next prime is 25164460859. The reversal of 25164460854 is 45806446152.

It is a happy number.

25164460854 is a `hidden beast` number, since 2 + 51 + 64 + 460 + 85 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25164460859) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38647 + ... + 227645.

It is an arithmetic number, because the mean of its divisors is an integer number (1225428750).

Almost surely, 2^25164460854 is an apocalyptic number.

25164460854 is an abundant number, since it is smaller than the sum of its proper divisors (33656119146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25164460854 is a wasteful number, since it uses less digits than its factorization.

25164460854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189589 (or 189586 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 45.

The spelling of 25164460854 in words is "twenty-five billion, one hundred sixty-four million, four hundred sixty thousand, eight hundred fifty-four".