53207013 has 4 divisors (see below), whose sum is σ = 70942688. Its totient is φ = 35471340.

The previous prime is 53207009. The next prime is 53207017. The reversal of 53207013 is 31070235.

It is a happy number.

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 an interprime number because it is at equal distance from previous prime (53207009) and next prime (53207017).

It is not a de Polignac number, because 53207013 - 2² = 53207009 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 (53207017) 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, 8867833 + ... + 8867838.

It is an arithmetic number, because the mean of its divisors is an integer number (17735672).

Almost surely, 2^53207013 is an apocalyptic number.

It is an amenable number.

53207013 is a deficient number, since it is larger than the sum of its proper divisors (17735675).

53207013 is a wasteful number, since it uses less digits than its factorization.

53207013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17735674.

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 53207013 is about 7294.3137442805. The cubic root of 53207013 is about 376.1169966569.

Adding to 53207013 its reverse (31070235), we get a palindrome (84277248).

The spelling of 53207013 in words is "fifty-three million, two hundred seven thousand, thirteen".