251144515483 has 2 divisors, whose sum is σ = 251144515484. Its totient is φ = 251144515482.

The previous prime is 251144515471. The next prime is 251144515591. The reversal of 251144515483 is 384515441152.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 251144515483 - 2⁵ = 251144515451 is a prime.

It is not a weakly prime, because it can be changed into another prime (251144515403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125572257741 + 125572257742.

It is an arithmetic number, because the mean of its divisors is an integer number (125572257742).

Almost surely, 2^251144515483 is an apocalyptic number.

251144515483 is a deficient number, since it is larger than the sum of its proper divisors (1).

251144515483 is an equidigital number, since it uses as much as digits as its factorization.

251144515483 is an evil number, because the sum of its binary digits is even.

The product of its digits is 384000, while the sum is 43.

The spelling of 251144515483 in words is "two hundred fifty-one billion, one hundred forty-four million, five hundred fifteen thousand, four hundred eighty-three".