253998359 has 2 divisors, whose sum is σ = 253998360. Its totient is φ = 253998358.

The previous prime is 253998347. The next prime is 253998373. The reversal of 253998359 is 953899352.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253998359 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 253998359.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253998319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126999179 + 126999180.

It is an arithmetic number, because the mean of its divisors is an integer number (126999180).

Almost surely, 2^253998359 is an apocalyptic number.

253998359 is a deficient number, since it is larger than the sum of its proper divisors (1).

253998359 is an equidigital number, since it uses as much as digits as its factorization.

253998359 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2624400, while the sum is 53.

The square root of 253998359 is about 15937.3259676773. The cubic root of 253998359 is about 633.3011892889.

The spelling of 253998359 in words is "two hundred fifty-three million, nine hundred ninety-eight thousand, three hundred fifty-nine".