53723513 has 2 divisors, whose sum is σ = 53723514. Its totient is φ = 53723512.

The previous prime is 53723497. The next prime is 53723521. The reversal of 53723513 is 31532735.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47513449 + 6210064 = 6893^2 + 2492^2 .

It is a cyclic number.

It is not a de Polignac number, because 53723513 - 2⁴ = 53723497 is a prime.

It is a super-2 number, since 2×53723513² = 5772431698122338, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (53723543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26861756 + 26861757.

It is an arithmetic number, because the mean of its divisors is an integer number (26861757).

Almost surely, 2^53723513 is an apocalyptic number.

It is an amenable number.

53723513 is a deficient number, since it is larger than the sum of its proper divisors (1).

53723513 is an equidigital number, since it uses as much as digits as its factorization.

53723513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9450, while the sum is 29.

The square root of 53723513 is about 7329.6325283059. The cubic root of 53723513 is about 377.3301149245.

The spelling of 53723513 in words is "fifty-three million, seven hundred twenty-three thousand, five hundred thirteen".