251240526223 has 2 divisors, whose sum is σ = 251240526224. Its totient is φ = 251240526222.

The previous prime is 251240526169. The next prime is 251240526227. The reversal of 251240526223 is 322625042152.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 251240526223 - 2²⁹ = 250703655311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (251240526227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125620263111 + 125620263112.

It is an arithmetic number, because the mean of its divisors is an integer number (125620263112).

Almost surely, 2^251240526223 is an apocalyptic number.

251240526223 is a deficient number, since it is larger than the sum of its proper divisors (1).

251240526223 is an equidigital number, since it uses as much as digits as its factorization.

251240526223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 251240526223 its reverse (322625042152), we get a palindrome (573865568375).

The spelling of 251240526223 in words is "two hundred fifty-one billion, two hundred forty million, five hundred twenty-six thousand, two hundred twenty-three".