53005091 has 2 divisors, whose sum is σ = 53005092. Its totient is φ = 53005090.

The previous prime is 53005067. The next prime is 53005097. The reversal of 53005091 is 19050035.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53005091 - 2¹⁴ = 52988707 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53005097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26502545 + 26502546.

It is an arithmetic number, because the mean of its divisors is an integer number (26502546).

Almost surely, 2^53005091 is an apocalyptic number.

53005091 is a deficient number, since it is larger than the sum of its proper divisors (1).

53005091 is an equidigital number, since it uses as much as digits as its factorization.

53005091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 675, while the sum is 23.

The square root of 53005091 is about 7280.4595321999. The cubic root of 53005091 is about 375.6406022388.

The spelling of 53005091 in words is "fifty-three million, five thousand, ninety-one".