53070013 has 4 divisors (see below), whose sum is σ = 54071388. Its totient is φ = 52068640.

The previous prime is 53070011. The next prime is 53070019. The reversal of 53070013 is 31007035.

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 23454649 + 29615364 = 4843^2 + 5442^2 .

It is a cyclic number.

It is not a de Polignac number, because 53070013 - 2¹ = 53070011 is a prime.

It is a super-3 number, since 3×53070013³ (a number of 24 digits) contains 333 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 (53070011) 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, 500608 + ... + 500713.

It is an arithmetic number, because the mean of its divisors is an integer number (13517847).

Almost surely, 2^53070013 is an apocalyptic number.

53070013 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

53070013 is a deficient number, since it is larger than the sum of its proper divisors (1001375).

53070013 is a wasteful number, since it uses less digits than its factorization.

53070013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001374.

The product of its (nonzero) digits is 315, while the sum is 19.

The square root of 53070013 is about 7284.9168148991. The cubic root of 53070013 is about 375.7939044263.

Adding to 53070013 its reverse (31007035), we get a palindrome (84077048).

The spelling of 53070013 in words is "fifty-three million, seventy thousand, thirteen".