53573243 has 2 divisors, whose sum is σ = 53573244. Its totient is φ = 53573242.

The previous prime is 53573209. The next prime is 53573251. The reversal of 53573243 is 34237535.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53573243 - 2¹⁴ = 53556859 is a prime.

It is not a weakly prime, because it can be changed into another prime (53573203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26786621 + 26786622.

It is an arithmetic number, because the mean of its divisors is an integer number (26786622).

Almost surely, 2^53573243 is an apocalyptic number.

53573243 is a deficient number, since it is larger than the sum of its proper divisors (1).

53573243 is an equidigital number, since it uses as much as digits as its factorization.

53573243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37800, while the sum is 32.

The square root of 53573243 is about 7319.3744951328. The cubic root of 53573243 is about 376.9779764661.

The spelling of 53573243 in words is "fifty-three million, five hundred seventy-three thousand, two hundred forty-three".