53812091 has 2 divisors, whose sum is σ = 53812092. Its totient is φ = 53812090.

The previous prime is 53811991. The next prime is 53812147. The reversal of 53812091 is 19021835.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53812091 is a prime.

It is a super-2 number, since 2×53812091² = 5791482275584562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (52812091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26906045 + 26906046.

It is an arithmetic number, because the mean of its divisors is an integer number (26906046).

Almost surely, 2^53812091 is an apocalyptic number.

53812091 is a deficient number, since it is larger than the sum of its proper divisors (1).

53812091 is an equidigital number, since it uses as much as digits as its factorization.

53812091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 53812091 is about 7335.6724981422. The cubic root of 53812091 is about 377.5373785774.

The spelling of 53812091 in words is "fifty-three million, eight hundred twelve thousand, ninety-one".