251423413 has 2 divisors, whose sum is σ = 251423414. Its totient is φ = 251423412.

The previous prime is 251423383. The next prime is 251423443. The reversal of 251423413 is 314324152.

It is a balanced prime because it is at equal distance from previous prime (251423383) and next prime (251423443).

It can be written as a sum of positive squares in only one way, i.e., 178543044 + 72880369 = 13362^2 + 8537^2 .

It is a cyclic number.

It is not a de Polignac number, because 251423413 - 2¹⁷ = 251292341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (251423443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125711706 + 125711707.

It is an arithmetic number, because the mean of its divisors is an integer number (125711707).

Almost surely, 2^251423413 is an apocalyptic number.

It is an amenable number.

251423413 is a deficient number, since it is larger than the sum of its proper divisors (1).

251423413 is an equidigital number, since it uses as much as digits as its factorization.

251423413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 25.

The square root of 251423413 is about 15856.3366828533. The cubic root of 251423413 is about 631.1538550038.

Adding to 251423413 its reverse (314324152), we get a palindrome (565747565).

The spelling of 251423413 in words is "two hundred fifty-one million, four hundred twenty-three thousand, four hundred thirteen".