253550233 has 4 divisors (see below), whose sum is σ = 260402980. Its totient is φ = 246697488.

The previous prime is 253550207. The next prime is 253550237. The reversal of 253550233 is 332055352.

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

It can be written as a sum of positive squares in 2 ways, for example, as 189117504 + 64432729 = 13752^2 + 8027^2 .

It is a cyclic number.

It is not a de Polignac number, because 253550233 - 2²⁵ = 219995801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253550237) 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, 3426318 + ... + 3426391.

It is an arithmetic number, because the mean of its divisors is an integer number (65100745).

Almost surely, 2^253550233 is an apocalyptic number.

It is an amenable number.

253550233 is a deficient number, since it is larger than the sum of its proper divisors (6852747).

253550233 is an equidigital number, since it uses as much as digits as its factorization.

253550233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6852746.

The product of its (nonzero) digits is 13500, while the sum is 28.

The square root of 253550233 is about 15923.2607527478. The cubic root of 253550233 is about 632.9285283598.

The spelling of 253550233 in words is "two hundred fifty-three million, five hundred fifty thousand, two hundred thirty-three".