253664327 has 24 divisors (see below), whose sum is σ = 316910880. Its totient is φ = 201707520.

The previous prime is 253664303. The next prime is 253664381. The reversal of 253664327 is 723466352.

It is a happy number.

It is not a de Polignac number, because 253664327 - 2¹⁰ = 253663303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253664627) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56999 + ... + 61287.

It is an arithmetic number, because the mean of its divisors is an integer number (13204620).

Almost surely, 2^253664327 is an apocalyptic number.

253664327 is a deficient number, since it is larger than the sum of its proper divisors (63246553).

253664327 is a wasteful number, since it uses less digits than its factorization.

253664327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4391 (or 4384 counting only the distinct ones).

The product of its digits is 181440, while the sum is 38.

The square root of 253664327 is about 15926.8429702813. The cubic root of 253664327 is about 633.0234504031.

The spelling of 253664327 in words is "two hundred fifty-three million, six hundred sixty-four thousand, three hundred twenty-seven".