25253002555 has 16 divisors (see below), whose sum is σ = 33107645664. Its totient is φ = 18338503680.

The previous prime is 25253002553. The next prime is 25253002561. The reversal of 25253002555 is 55520035252.

It is not a de Polignac number, because 25253002555 - 2¹ = 25253002553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25253002555.

It is not an unprimeable number, because it can be changed into a prime (25253002553) 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 15 ways as a sum of consecutive naturals, for example, 304104 + ... + 378133.

It is an arithmetic number, because the mean of its divisors is an integer number (2069227854).

Almost surely, 2^25253002555 is an apocalyptic number.

25253002555 is a deficient number, since it is larger than the sum of its proper divisors (7854643109).

25253002555 is a wasteful number, since it uses less digits than its factorization.

25253002555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682926.

The product of its (nonzero) digits is 75000, while the sum is 34.

The spelling of 25253002555 in words is "twenty-five billion, two hundred fifty-three million, two thousand, five hundred fifty-five".