25051842021 has 8 divisors (see below), whose sum is σ = 33698053440. Its totient is φ = 16553429312.

The previous prime is 25051841977. The next prime is 25051842031. The reversal of 25051842021 is 12024815052.

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

It is a cyclic number.

It is not a de Polignac number, because 25051842021 - 2⁶ = 25051841957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25051842021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25051842031) 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, 36949281 + ... + 36949958.

It is an arithmetic number, because the mean of its divisors is an integer number (4212256680).

Almost surely, 2^25051842021 is an apocalyptic number.

It is an amenable number.

25051842021 is a deficient number, since it is larger than the sum of its proper divisors (8646211419).

25051842021 is a wasteful number, since it uses less digits than its factorization.

25051842021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73899355.

The product of its (nonzero) digits is 6400, while the sum is 30.

The spelling of 25051842021 in words is "twenty-five billion, fifty-one million, eight hundred forty-two thousand, twenty-one".