52636891 has 2 divisors, whose sum is σ = 52636892. Its totient is φ = 52636890.

The previous prime is 52636873. The next prime is 52636901. The reversal of 52636891 is 19863625.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52636891 - 2⁹ = 52636379 is a prime.

It is not a weakly prime, because it can be changed into another prime (52636861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26318445 + 26318446.

It is an arithmetic number, because the mean of its divisors is an integer number (26318446).

Almost surely, 2^52636891 is an apocalyptic number.

52636891 is a deficient number, since it is larger than the sum of its proper divisors (1).

52636891 is an equidigital number, since it uses as much as digits as its factorization.

52636891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 40.

The square root of 52636891 is about 7255.1285998251. The cubic root of 52636891 is about 374.7687842822.

The spelling of 52636891 in words is "fifty-two million, six hundred thirty-six thousand, eight hundred ninety-one".