253810856291 has 2 divisors, whose sum is σ = 253810856292. Its totient is φ = 253810856290.

The previous prime is 253810856269. The next prime is 253810856309. The reversal of 253810856291 is 192658018352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 253810856291 - 2¹⁰ = 253810855267 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (253810856231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126905428145 + 126905428146.

It is an arithmetic number, because the mean of its divisors is an integer number (126905428146).

Almost surely, 2^253810856291 is an apocalyptic number.

253810856291 is a deficient number, since it is larger than the sum of its proper divisors (1).

253810856291 is an equidigital number, since it uses as much as digits as its factorization.

253810856291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1036800, while the sum is 50.

The spelling of 253810856291 in words is "two hundred fifty-three billion, eight hundred ten million, eight hundred fifty-six thousand, two hundred ninety-one".