251992993223 has 8 divisors (see below), whose sum is σ = 273812421120. Its totient is φ = 231029229240.

The previous prime is 251992993183. The next prime is 251992993237. The reversal of 251992993223 is 322399299152.

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 251992993223 - 2¹⁴ = 251992976839 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 (251992998223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213915365 + ... + 213916542.

It is an arithmetic number, because the mean of its divisors is an integer number (34226552640).

Almost surely, 2^251992993223 is an apocalyptic number.

251992993223 is a deficient number, since it is larger than the sum of its proper divisors (21819427897).

251992993223 is a wasteful number, since it uses less digits than its factorization.

251992993223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427831957.

The product of its digits is 4723920, while the sum is 56.

The spelling of 251992993223 in words is "two hundred fifty-one billion, nine hundred ninety-two million, nine hundred ninety-three thousand, two hundred twenty-three".