53545013 has 2 divisors, whose sum is σ = 53545014. Its totient is φ = 53545012.

The previous prime is 53545003. The next prime is 53545039. The reversal of 53545013 is 31054535.

It is an a-pointer prime, because the next prime (53545039) can be obtained adding 53545013 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45468049 + 8076964 = 6743^2 + 2842^2 .

It is a cyclic number.

It is not a de Polignac number, because 53545013 - 2⁶ = 53544949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53545003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26772506 + 26772507.

It is an arithmetic number, because the mean of its divisors is an integer number (26772507).

Almost surely, 2^53545013 is an apocalyptic number.

It is an amenable number.

53545013 is a deficient number, since it is larger than the sum of its proper divisors (1).

53545013 is an equidigital number, since it uses as much as digits as its factorization.

53545013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 53545013 is about 7317.4457975444. The cubic root of 53545013 is about 376.9117496366.

Adding to 53545013 its reverse (31054535), we get a palindrome (84599548).

The spelling of 53545013 in words is "fifty-three million, five hundred forty-five thousand, thirteen".