253720267 has 4 divisors (see below), whose sum is σ = 253876896. Its totient is φ = 253563640.

The previous prime is 253720183. The next prime is 253720273. The reversal of 253720267 is 762027352.

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

It is a cyclic number.

It is not a de Polignac number, because 253720267 - 2⁷ = 253720139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253720297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75859 + ... + 79132.

It is an arithmetic number, because the mean of its divisors is an integer number (63469224).

Almost surely, 2^253720267 is an apocalyptic number.

253720267 is a deficient number, since it is larger than the sum of its proper divisors (156629).

253720267 is a wasteful number, since it uses less digits than its factorization.

253720267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156628.

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 253720267 is about 15928.5990281631. The cubic root of 253720267 is about 633.0699800426.

The spelling of 253720267 in words is "two hundred fifty-three million, seven hundred twenty thousand, two hundred sixty-seven".