25374373021 has 8 divisors (see below), whose sum is σ = 25821008640. Its totient is φ = 24928289568.

The previous prime is 25374372983. The next prime is 25374373039. The reversal of 25374373021 is 12037347352.

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 25374373021 - 2²¹ = 25372275869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25374373091) 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, 44776 + ... + 229681.

It is an arithmetic number, because the mean of its divisors is an integer number (3227626080).

Almost surely, 2^25374373021 is an apocalyptic number.

It is an amenable number.

25374373021 is a deficient number, since it is larger than the sum of its proper divisors (446635619).

25374373021 is a wasteful number, since it uses less digits than its factorization.

25374373021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276083.

The product of its (nonzero) digits is 105840, while the sum is 37.

The spelling of 25374373021 in words is "twenty-five billion, three hundred seventy-four million, three hundred seventy-three thousand, twenty-one".