25140055422 has 32 divisors (see below), whose sum is σ = 50918958720. Its totient is φ = 8273675360.

The previous prime is 25140055417. The next prime is 25140055453. The reversal of 25140055422 is 22455004152.

It is a self number, because there is not a number n which added to its sum of digits gives 25140055422.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 790672 + ... + 821852.

It is an arithmetic number, because the mean of its divisors is an integer number (1591217460).

Almost surely, 2^25140055422 is an apocalyptic number.

25140055422 is an abundant number, since it is smaller than the sum of its proper divisors (25778903298).

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

25140055422 is a wasteful number, since it uses less digits than its factorization.

25140055422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32888.

The product of its (nonzero) digits is 16000, while the sum is 30.

Adding to 25140055422 its reverse (22455004152), we get a palindrome (47595059574).

The spelling of 25140055422 in words is "twenty-five billion, one hundred forty million, fifty-five thousand, four hundred twenty-two".