53033513 has 8 divisors (see below), whose sum is σ = 57271368. Its totient is φ = 48818304.

The previous prime is 53033473. The next prime is 53033581. The reversal of 53033513 is 31533035.

It can be written as a sum of positive squares in 4 ways, for example, as 12482089 + 40551424 = 3533^2 + 6368^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53033513 is a prime.

It is a super-2 number, since 2×53033513² = 5625107002242338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53033593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 620 + ... + 10317.

It is an arithmetic number, because the mean of its divisors is an integer number (7158921).

Almost surely, 2^53033513 is an apocalyptic number.

It is an amenable number.

53033513 is a deficient number, since it is larger than the sum of its proper divisors (4237855).

53033513 is a wasteful number, since it uses less digits than its factorization.

53033513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11323.

The product of its (nonzero) digits is 2025, while the sum is 23.

The square root of 53033513 is about 7282.4112078349. The cubic root of 53033513 is about 375.7077313219.

Adding to 53033513 its reverse (31533035), we get a palindrome (84566548).

It can be divided in two parts, 530 and 33513, that added together give a palindrome (34043).

The spelling of 53033513 in words is "fifty-three million, thirty-three thousand, five hundred thirteen".