251012530453 has 2 divisors, whose sum is σ = 251012530454. Its totient is φ = 251012530452.

The previous prime is 251012530411. The next prime is 251012530459. The reversal of 251012530453 is 354035210152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 250727528529 + 285001924 = 500727^2 + 16882^2 .

It is a cyclic number.

It is not a de Polignac number, because 251012530453 - 2⁹ = 251012529941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (251012530459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125506265226 + 125506265227.

It is an arithmetic number, because the mean of its divisors is an integer number (125506265227).

Almost surely, 2^251012530453 is an apocalyptic number.

It is an amenable number.

251012530453 is a deficient number, since it is larger than the sum of its proper divisors (1).

251012530453 is an equidigital number, since it uses as much as digits as its factorization.

251012530453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 251012530453 in words is "two hundred fifty-one billion, twelve million, five hundred thirty thousand, four hundred fifty-three".