25795884021 has 8 divisors (see below), whose sum is σ = 35504012544. Its totient is φ = 16642505760.

The previous prime is 25795884011. The next prime is 25795884073. The reversal of 25795884021 is 12048859752.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25795884021 - 2¹⁴ = 25795867637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25795884001) 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 7 ways as a sum of consecutive naturals, for example, 138687456 + ... + 138687641.

It is an arithmetic number, because the mean of its divisors is an integer number (4438001568).

Almost surely, 2^25795884021 is an apocalyptic number.

It is an amenable number.

25795884021 is a deficient number, since it is larger than the sum of its proper divisors (9708128523).

25795884021 is a wasteful number, since it uses less digits than its factorization.

25795884021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277375131.

The product of its (nonzero) digits is 1612800, while the sum is 51.

The spelling of 25795884021 in words is "twenty-five billion, seven hundred ninety-five million, eight hundred eighty-four thousand, twenty-one".