253263509461 has 2 divisors, whose sum is σ = 253263509462. Its totient is φ = 253263509460.

The previous prime is 253263509431. The next prime is 253263509501. The reversal of 253263509461 is 164905362352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 252927520561 + 335988900 = 502919^2 + 18330^2 .

It is a cyclic number.

It is not a de Polignac number, because 253263509461 - 2²⁵ = 253229955029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253263509431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126631754730 + 126631754731.

It is an arithmetic number, because the mean of its divisors is an integer number (126631754731).

Almost surely, 2^253263509461 is an apocalyptic number.

It is an amenable number.

253263509461 is a deficient number, since it is larger than the sum of its proper divisors (1).

253263509461 is an equidigital number, since it uses as much as digits as its factorization.

253263509461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1166400, while the sum is 46.

The spelling of 253263509461 in words is "two hundred fifty-three billion, two hundred sixty-three million, five hundred nine thousand, four hundred sixty-one".