253156663 has 2 divisors, whose sum is σ = 253156664. Its totient is φ = 253156662.

The previous prime is 253156661. The next prime is 253156679. The reversal of 253156663 is 366651352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253156663 - 2¹ = 253156661 is a prime.

Together with 253156661, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253156661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126578331 + 126578332.

It is an arithmetic number, because the mean of its divisors is an integer number (126578332).

Almost surely, 2^253156663 is an apocalyptic number.

253156663 is a deficient number, since it is larger than the sum of its proper divisors (1).

253156663 is an equidigital number, since it uses as much as digits as its factorization.

253156663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97200, while the sum is 37.

The square root of 253156663 is about 15910.8976176707. The cubic root of 253156663 is about 632.6008737862.

The spelling of 253156663 in words is "two hundred fifty-three million, one hundred fifty-six thousand, six hundred sixty-three".