251411052413 has 2 divisors, whose sum is σ = 251411052414. Its totient is φ = 251411052412.

The previous prime is 251411052397. The next prime is 251411052511. The reversal of 251411052413 is 314250114152.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 152379368164 + 99031684249 = 390358^2 + 314693^2 .

It is a cyclic number.

It is not a de Polignac number, because 251411052413 - 2⁴ = 251411052397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (251411051413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125705526206 + 125705526207.

It is an arithmetic number, because the mean of its divisors is an integer number (125705526207).

Almost surely, 2^251411052413 is an apocalyptic number.

It is an amenable number.

251411052413 is a deficient number, since it is larger than the sum of its proper divisors (1).

251411052413 is an equidigital number, since it uses as much as digits as its factorization.

251411052413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 251411052413 its reverse (314250114152), we get a palindrome (565661166565).

The spelling of 251411052413 in words is "two hundred fifty-one billion, four hundred eleven million, fifty-two thousand, four hundred thirteen".