25025421466 has 16 divisors (see below), whose sum is σ = 37996588224. Its totient is φ = 12359941344.

The previous prime is 25025421461. The next prime is 25025421503. The reversal of 25025421466 is 66412452052.

It is a happy number.

25025421466 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (25025421461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1997875 + ... + 2010361.

It is an arithmetic number, because the mean of its divisors is an integer number (2374786764).

Almost surely, 2^25025421466 is an apocalyptic number.

25025421466 is a deficient number, since it is larger than the sum of its proper divisors (12971166758).

25025421466 is a wasteful number, since it uses less digits than its factorization.

25025421466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24645.

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 25025421466 in words is "twenty-five billion, twenty-five million, four hundred twenty-one thousand, four hundred sixty-six".