53012291 has 4 divisors (see below), whose sum is σ = 53028000. Its totient is φ = 52996584.

The previous prime is 53012269. The next prime is 53012293. The reversal of 53012291 is 19221035.

53012291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 53012291 - 2¹⁸ = 52750147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53012293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 491 + ... + 10308.

It is an arithmetic number, because the mean of its divisors is an integer number (13257000).

Almost surely, 2^53012291 is an apocalyptic number.

53012291 is a deficient number, since it is larger than the sum of its proper divisors (15709).

53012291 is a wasteful number, since it uses less digits than its factorization.

53012291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15708.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 53012291 is about 7280.9539896912. The cubic root of 53012291 is about 375.6576099754.

It can be divided in two parts, 530 and 12291, that added together give a palindrome (12821).

The spelling of 53012291 in words is "fifty-three million, twelve thousand, two hundred ninety-one".