53605291 has 2 divisors, whose sum is σ = 53605292. Its totient is φ = 53605290.

The previous prime is 53605273. The next prime is 53605337. The reversal of 53605291 is 19250635.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53605291 - 2⁵ = 53605259 is a prime.

It is not a weakly prime, because it can be changed into another prime (53605241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26802645 + 26802646.

It is an arithmetic number, because the mean of its divisors is an integer number (26802646).

Almost surely, 2^53605291 is an apocalyptic number.

53605291 is a deficient number, since it is larger than the sum of its proper divisors (1).

53605291 is an equidigital number, since it uses as much as digits as its factorization.

53605291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 53605291 is about 7321.5634259357. The cubic root of 53605291 is about 377.0531320303.

The spelling of 53605291 in words is "fifty-three million, six hundred five thousand, two hundred ninety-one".