25140254655 has 16 divisors (see below), whose sum is σ = 41159859840. Its totient is φ = 13096318368.

The previous prime is 25140254621. The next prime is 25140254677. The reversal of 25140254655 is 55645204152.

It is not a de Polignac number, because 25140254655 - 2⁶ = 25140254591 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19487925 + ... + 19489214.

It is an arithmetic number, because the mean of its divisors is an integer number (2572491240).

Almost surely, 2^25140254655 is an apocalyptic number.

25140254655 is a deficient number, since it is larger than the sum of its proper divisors (16019605185).

25140254655 is a wasteful number, since it uses less digits than its factorization.

25140254655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38977190.

The product of its (nonzero) digits is 240000, while the sum is 39.

The spelling of 25140254655 in words is "twenty-five billion, one hundred forty million, two hundred fifty-four thousand, six hundred fifty-five".