253911601 has 2 divisors, whose sum is σ = 253911602. Its totient is φ = 253911600.

The previous prime is 253911599. The next prime is 253911629. The reversal of 253911601 is 106119352.

It is an a-pointer prime, because the next prime (253911629) can be obtained adding 253911601 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131698576 + 122213025 = 11476^2 + 11055^2 .

It is a cyclic number.

It is not a de Polignac number, because 253911601 - 2¹ = 253911599 is a prime.

It is a super-2 number, since 2×253911601² = 128942202244766402, which contains 22 as substring.

Together with 253911599, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 253911601.

It is not a weakly prime, because it can be changed into another prime (253911641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126955800 + 126955801.

It is an arithmetic number, because the mean of its divisors is an integer number (126955801).

Almost surely, 2^253911601 is an apocalyptic number.

It is an amenable number.

253911601 is a deficient number, since it is larger than the sum of its proper divisors (1).

253911601 is an equidigital number, since it uses as much as digits as its factorization.

253911601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 253911601 is about 15934.6038858831. The cubic root of 253911601 is about 633.2290756977.

The spelling of 253911601 in words is "two hundred fifty-three million, nine hundred eleven thousand, six hundred one".