253226047 has 4 divisors (see below), whose sum is σ = 256431520. Its totient is φ = 250020576.

The previous prime is 253226041. The next prime is 253226063. The reversal of 253226047 is 740622352.

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 253226047 - 2²⁷ = 119008319 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 (253226041) 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, 1602618 + ... + 1602775.

It is an arithmetic number, because the mean of its divisors is an integer number (64107880).

Almost surely, 2^253226047 is an apocalyptic number.

253226047 is a deficient number, since it is larger than the sum of its proper divisors (3205473).

253226047 is an equidigital number, since it uses as much as digits as its factorization.

253226047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3205472.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 253226047 is about 15913.0778606780. The cubic root of 253226047 is about 632.6586619416.

Adding to 253226047 its reverse (740622352), we get a palindrome (993848399).

The spelling of 253226047 in words is "two hundred fifty-three million, two hundred twenty-six thousand, forty-seven".