253451311155433 has 2 divisors, whose sum is σ = 253451311155434. Its totient is φ = 253451311155432.

The previous prime is 253451311155377. The next prime is 253451311155487. The reversal of 253451311155433 is 334551113154352.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 237940096044249 + 15511215111184 = 15425307^2 + 3938428^2 .

It is a cyclic number.

It is not a de Polignac number, because 253451311155433 - 2⁴¹ = 251252287899881 is a prime.

It is not a weakly prime, because it can be changed into another prime (253451311158433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126725655577716 + 126725655577717.

It is an arithmetic number, because the mean of its divisors is an integer number (126725655577717).

Almost surely, 2^{253451311155433} is an apocalyptic number.

It is an amenable number.

253451311155433 is a deficient number, since it is larger than the sum of its proper divisors (1).

253451311155433 is an equidigital number, since it uses as much as digits as its factorization.

253451311155433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620000, while the sum is 46.

The spelling of 253451311155433 in words is "two hundred fifty-three trillion, four hundred fifty-one billion, three hundred eleven million, one hundred fifty-five thousand, four hundred thirty-three".