253887667 has 4 divisors (see below), whose sum is σ = 276968376. Its totient is φ = 230806960.

The previous prime is 253887637. The next prime is 253887677. The reversal of 253887667 is 766788352.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253887667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253887617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11540338 + ... + 11540359.

It is an arithmetic number, because the mean of its divisors is an integer number (69242094).

Almost surely, 2^253887667 is an apocalyptic number.

253887667 is a deficient number, since it is larger than the sum of its proper divisors (23080709).

253887667 is a wasteful number, since it uses less digits than its factorization.

253887667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23080708.

The product of its digits is 3386880, while the sum is 52.

The square root of 253887667 is about 15933.8528611256. The cubic root of 253887667 is about 633.2091787718.

The spelling of 253887667 in words is "two hundred fifty-three million, eight hundred eighty-seven thousand, six hundred sixty-seven".