25042084121 has 4 divisors (see below), whose sum is σ = 25065038544. Its totient is φ = 25019129700.

The previous prime is 25042084117. The next prime is 25042084129. The reversal of 25042084121 is 12148024052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25042084121 - 2² = 25042084117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25042084129) 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 3 ways as a sum of consecutive naturals, for example, 11475575 + ... + 11477756.

It is an arithmetic number, because the mean of its divisors is an integer number (6266259636).

Almost surely, 2^25042084121 is an apocalyptic number.

It is an amenable number.

25042084121 is a deficient number, since it is larger than the sum of its proper divisors (22954423).

25042084121 is a wasteful number, since it uses less digits than its factorization.

25042084121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22954422.

The product of its (nonzero) digits is 5120, while the sum is 29.

The spelling of 25042084121 in words is "twenty-five billion, forty-two million, eighty-four thousand, one hundred twenty-one".