253599203461 has 2 divisors, whose sum is σ = 253599203462. Its totient is φ = 253599203460.

The previous prime is 253599203453. The next prime is 253599203479. The reversal of 253599203461 is 164302995352.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201286822500 + 52312380961 = 448650^2 + 228719^2 .

It is a cyclic number.

It is not a de Polignac number, because 253599203461 - 2³ = 253599203453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253599203491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126799601730 + 126799601731.

It is an arithmetic number, because the mean of its divisors is an integer number (126799601731).

Almost surely, 2^253599203461 is an apocalyptic number.

It is an amenable number.

253599203461 is a deficient number, since it is larger than the sum of its proper divisors (1).

253599203461 is an equidigital number, since it uses as much as digits as its factorization.

253599203461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1749600, while the sum is 49.

The spelling of 253599203461 in words is "two hundred fifty-three billion, five hundred ninety-nine million, two hundred three thousand, four hundred sixty-one".