25140055423 has 16 divisors (see below), whose sum is σ = 29162177280. Its totient is φ = 21227858496.

The previous prime is 25140055417. The next prime is 25140055453. The reversal of 25140055423 is 32455004152.

It is a cyclic number.

It is not a de Polignac number, because 25140055423 - 2¹⁷ = 25139924351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25140055453) 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, 40315 + ... + 227827.

It is an arithmetic number, because the mean of its divisors is an integer number (1822636080).

Almost surely, 2^25140055423 is an apocalyptic number.

25140055423 is a deficient number, since it is larger than the sum of its proper divisors (4022121857).

25140055423 is a wasteful number, since it uses less digits than its factorization.

25140055423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187806.

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 25140055423 its reverse (32455004152), we get a palindrome (57595059575).

The spelling of 25140055423 in words is "twenty-five billion, one hundred forty million, fifty-five thousand, four hundred twenty-three".