253881701 has 2 divisors, whose sum is σ = 253881702. Its totient is φ = 253881700.

The previous prime is 253881673. The next prime is 253881703. The reversal of 253881701 is 107188352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169260100 + 84621601 = 13010^2 + 9199^2 .

It is a cyclic number.

It is not a de Polignac number, because 253881701 - 2⁶ = 253881637 is a prime.

Together with 253881703, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253881703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126940850 + 126940851.

It is an arithmetic number, because the mean of its divisors is an integer number (126940851).

Almost surely, 2^253881701 is an apocalyptic number.

It is an amenable number.

253881701 is a deficient number, since it is larger than the sum of its proper divisors (1).

253881701 is an equidigital number, since it uses as much as digits as its factorization.

253881701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 253881701 is about 15933.6656485568. The cubic root of 253881701 is about 633.2042188938.

The spelling of 253881701 in words is "two hundred fifty-three million, eight hundred eighty-one thousand, seven hundred one".