53043013 has 4 divisors (see below), whose sum is σ = 53111200. Its totient is φ = 52974828.

The previous prime is 53042993. The next prime is 53043019. The reversal of 53043013 is 31034035.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53043013 - 2⁵ = 53042981 is a prime.

It is a super-2 number, since 2×53043013² = 5627122456236338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53043019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32913 + ... + 34486.

It is an arithmetic number, because the mean of its divisors is an integer number (13277800).

Almost surely, 2^53043013 is an apocalyptic number.

It is an amenable number.

53043013 is a deficient number, since it is larger than the sum of its proper divisors (68187).

53043013 is an equidigital number, since it uses as much as digits as its factorization.

53043013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68186.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 53043013 is about 7283.0634351212. The cubic root of 53043013 is about 375.7301637434.

Adding to 53043013 its reverse (31034035), we get a palindrome (84077048).

The spelling of 53043013 in words is "fifty-three million, forty-three thousand, thirteen".