251400224244451 has 2 divisors, whose sum is σ = 251400224244452. Its totient is φ = 251400224244450.

The previous prime is 251400224244341. The next prime is 251400224244517. The reversal of 251400224244451 is 154442422004152.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-251400224244451 is a prime.

It is not a weakly prime, because it can be changed into another prime (251400224245451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125700112122225 + 125700112122226.

It is an arithmetic number, because the mean of its divisors is an integer number (125700112122226).

Almost surely, 2^{251400224244451} is an apocalyptic number.

251400224244451 is a deficient number, since it is larger than the sum of its proper divisors (1).

251400224244451 is an equidigital number, since it uses as much as digits as its factorization.

251400224244451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 409600, while the sum is 40.

The spelling of 251400224244451 in words is "two hundred fifty-one trillion, four hundred billion, two hundred twenty-four million, two hundred forty-four thousand, four hundred fifty-one".