253407505541 has 2 divisors, whose sum is σ = 253407505542. Its totient is φ = 253407505540.

The previous prime is 253407505511. The next prime is 253407505573. The reversal of 253407505541 is 145505704352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 176925390625 + 76482114916 = 420625^2 + 276554^2 .

It is a cyclic number.

It is not a de Polignac number, because 253407505541 - 2¹⁰ = 253407504517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253407505511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126703752770 + 126703752771.

It is an arithmetic number, because the mean of its divisors is an integer number (126703752771).

Almost surely, 2^253407505541 is an apocalyptic number.

It is an amenable number.

253407505541 is a deficient number, since it is larger than the sum of its proper divisors (1).

253407505541 is an equidigital number, since it uses as much as digits as its factorization.

253407505541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420000, while the sum is 41.

The spelling of 253407505541 in words is "two hundred fifty-three billion, four hundred seven million, five hundred five thousand, five hundred forty-one".