25323321855 has 128 divisors (see below), whose sum is σ = 46593792000. Its totient is φ = 11655383040.

The previous prime is 25323321853. The next prime is 25323321871. The reversal of 25323321855 is 55812332352.

It is not a de Polignac number, because 25323321855 - 2¹ = 25323321853 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25323321853) by changing a digit.

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 127 ways as a sum of consecutive naturals, for example, 23688261 + ... + 23689329.

It is an arithmetic number, because the mean of its divisors is an integer number (364014000).

Almost surely, 2^25323321855 is an apocalyptic number.

25323321855 is a deficient number, since it is larger than the sum of its proper divisors (21270470145).

25323321855 is a wasteful number, since it uses less digits than its factorization.

25323321855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249.

The product of its digits is 216000, while the sum is 39.

The spelling of 25323321855 in words is "twenty-five billion, three hundred twenty-three million, three hundred twenty-one thousand, eight hundred fifty-five".