25140502555 has 32 divisors (see below), whose sum is σ = 36306178560. Its totient is φ = 16325971200.

The previous prime is 25140502553. The next prime is 25140502589. The reversal of 25140502555 is 55520504152.

It is not a de Polignac number, because 25140502555 - 2¹ = 25140502553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25140502555.

It is not an unprimeable number, because it can be changed into a prime (25140502553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2556007 + ... + 2565823.

It is an arithmetic number, because the mean of its divisors is an integer number (1134568080).

Almost surely, 2^25140502555 is an apocalyptic number.

25140502555 is a deficient number, since it is larger than the sum of its proper divisors (11165676005).

25140502555 is a wasteful number, since it uses less digits than its factorization.

25140502555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13699.

The product of its (nonzero) digits is 50000, while the sum is 34.

The spelling of 25140502555 in words is "twenty-five billion, one hundred forty million, five hundred two thousand, five hundred fifty-five".