53815133 has 2 divisors, whose sum is σ = 53815134. Its totient is φ = 53815132.

The previous prime is 53815127. The next prime is 53815159. The reversal of 53815133 is 33151835.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45738169 + 8076964 = 6763^2 + 2842^2 .

It is a cyclic number.

It is not a de Polignac number, because 53815133 - 2¹⁴ = 53798749 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 53815096 and 53815105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53815033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26907566 + 26907567.

It is an arithmetic number, because the mean of its divisors is an integer number (26907567).

Almost surely, 2^53815133 is an apocalyptic number.

It is an amenable number.

53815133 is a deficient number, since it is larger than the sum of its proper divisors (1).

53815133 is an equidigital number, since it uses as much as digits as its factorization.

53815133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 29.

The square root of 53815133 is about 7335.8798381653. The cubic root of 53815133 is about 377.5444925118.

Adding to 53815133 its reverse (33151835), we get a palindrome (86966968).

The spelling of 53815133 in words is "fifty-three million, eight hundred fifteen thousand, one hundred thirty-three".