253667371 has 2 divisors, whose sum is σ = 253667372. Its totient is φ = 253667370.

The previous prime is 253667329. The next prime is 253667399. The reversal of 253667371 is 173766352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 253667371 - 2¹³ = 253659179 is a prime.

It is a super-2 number, since 2×253667371² = 128694270220103282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (253667311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126833685 + 126833686.

It is an arithmetic number, because the mean of its divisors is an integer number (126833686).

Almost surely, 2^253667371 is an apocalyptic number.

253667371 is a deficient number, since it is larger than the sum of its proper divisors (1).

253667371 is an equidigital number, since it uses as much as digits as its factorization.

253667371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 158760, while the sum is 40.

The square root of 253667371 is about 15926.9385319339. The cubic root of 253667371 is about 633.0259825101.

The spelling of 253667371 in words is "two hundred fifty-three million, six hundred sixty-seven thousand, three hundred seventy-one".