253884731 has 4 divisors (see below), whose sum is σ = 254001264. Its totient is φ = 253768200.

The previous prime is 253884727. The next prime is 253884733. The reversal of 253884731 is 137488352.

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 253884731 - 2² = 253884727 is a prime.

It is a super-2 number, since 2×253884731² = 128914913269884722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253884733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54935 + ... + 59376.

It is an arithmetic number, because the mean of its divisors is an integer number (63500316).

Almost surely, 2^253884731 is an apocalyptic number.

253884731 is a deficient number, since it is larger than the sum of its proper divisors (116533).

253884731 is a wasteful number, since it uses less digits than its factorization.

253884731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116532.

The product of its digits is 161280, while the sum is 41.

The square root of 253884731 is about 15933.7607299721. The cubic root of 253884731 is about 633.2067379163.

The spelling of 253884731 in words is "two hundred fifty-three million, eight hundred eighty-four thousand, seven hundred thirty-one".