251352145522423 has 12 divisors (see below), whose sum is σ = 276280248097840. Its totient is φ = 228501440117280.

The previous prime is 251352145522421. The next prime is 251352145522493. The reversal of 251352145522423 is 324225541253152.

It is not a de Polignac number, because 251352145522423 - 2¹ = 251352145522421 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 (251352145522421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58680118 + ... + 62817676.

Almost surely, 2^{251352145522423} is an apocalyptic number.

251352145522423 is a deficient number, since it is larger than the sum of its proper divisors (24928102575417).

251352145522423 is a wasteful number, since it uses less digits than its factorization.

251352145522423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4639638 (or 4639627 counting only the distinct ones).

The product of its digits is 2880000, while the sum is 46.

Adding to 251352145522423 its reverse (324225541253152), we get a palindrome (575577686775575).

The spelling of 251352145522423 in words is "two hundred fifty-one trillion, three hundred fifty-two billion, one hundred forty-five million, five hundred twenty-two thousand, four hundred twenty-three".