253889887 has 2 divisors, whose sum is σ = 253889888. Its totient is φ = 253889886.

The previous prime is 253889879. The next prime is 253889897. The reversal of 253889887 is 788988352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253889887 - 2³ = 253889879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253889807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126944943 + 126944944.

It is an arithmetic number, because the mean of its divisors is an integer number (126944944).

Almost surely, 2^253889887 is an apocalyptic number.

253889887 is a deficient number, since it is larger than the sum of its proper divisors (1).

253889887 is an equidigital number, since it uses as much as digits as its factorization.

253889887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7741440, while the sum is 58.

The square root of 253889887 is about 15933.9225239738. The cubic root of 253889887 is about 633.2110243653.

The spelling of 253889887 in words is "two hundred fifty-three million, eight hundred eighty-nine thousand, eight hundred eighty-seven".