53130813 has 8 divisors (see below), whose sum is σ = 73284000. Its totient is φ = 34199088.

The previous prime is 53130809. The next prime is 53130823. The reversal of 53130813 is 31803135.

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

It is not a de Polignac number, because 53130813 - 2² = 53130809 is a prime.

It is a super-3 number, since 3×53130813³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53130823) 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, 305263 + ... + 305436.

It is an arithmetic number, because the mean of its divisors is an integer number (9160500).

Almost surely, 2^53130813 is an apocalyptic number.

It is an amenable number.

53130813 is a deficient number, since it is larger than the sum of its proper divisors (20153187).

53130813 is a wasteful number, since it uses less digits than its factorization.

53130813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610731.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 53130813 is about 7289.0886261590. The cubic root of 53130813 is about 375.9373598872.

Adding to 53130813 its reverse (31803135), we get a palindrome (84933948).

The spelling of 53130813 in words is "fifty-three million, one hundred thirty thousand, eight hundred thirteen".