53745233 has 4 divisors (see below), whose sum is σ = 54759348. Its totient is φ = 52731120.

The previous prime is 53745229. The next prime is 53745247. The reversal of 53745233 is 33254735.

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 48330304 + 5414929 = 6952^2 + 2327^2 .

It is a cyclic number.

It is not a de Polignac number, because 53745233 - 2² = 53745229 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53745233.

It is not an unprimeable number, because it can be changed into a prime (53742233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506978 + ... + 507083.

It is an arithmetic number, because the mean of its divisors is an integer number (13689837).

Almost surely, 2^53745233 is an apocalyptic number.

53745233 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

53745233 is a deficient number, since it is larger than the sum of its proper divisors (1014115).

53745233 is a wasteful number, since it uses less digits than its factorization.

53745233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014114.

The product of its digits is 37800, while the sum is 32.

The square root of 53745233 is about 7331.1140353973. The cubic root of 53745233 is about 377.3809586204.

Adding to 53745233 its reverse (33254735), we get a palindrome (86999968).

The spelling of 53745233 in words is "fifty-three million, seven hundred forty-five thousand, two hundred thirty-three".