251053423 has 2 divisors, whose sum is σ = 251053424. Its totient is φ = 251053422.

The previous prime is 251053417. The next prime is 251053447. The reversal of 251053423 is 324350152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 251053423 - 2¹³ = 251045231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (251053483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125526711 + 125526712.

It is an arithmetic number, because the mean of its divisors is an integer number (125526712).

Almost surely, 2^251053423 is an apocalyptic number.

251053423 is a deficient number, since it is larger than the sum of its proper divisors (1).

251053423 is an equidigital number, since it uses as much as digits as its factorization.

251053423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 251053423 is about 15844.6654429811. The cubic root of 251053423 is about 630.8441049372.

The spelling of 251053423 in words is "two hundred fifty-one million, fifty-three thousand, four hundred twenty-three".