53766997 has 2 divisors, whose sum is σ = 53766998. Its totient is φ = 53766996.

The previous prime is 53766991. The next prime is 53767019. The reversal of 53766997 is 79966735.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53670276 + 96721 = 7326^2 + 311^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53766997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53766991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26883498 + 26883499.

It is an arithmetic number, because the mean of its divisors is an integer number (26883499).

Almost surely, 2^53766997 is an apocalyptic number.

It is an amenable number.

53766997 is a deficient number, since it is larger than the sum of its proper divisors (1).

53766997 is an equidigital number, since it uses as much as digits as its factorization.

53766997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2143260, while the sum is 52.

The square root of 53766997 is about 7332.5982434605. The cubic root of 53766997 is about 377.4318915765.

The spelling of 53766997 in words is "fifty-three million, seven hundred sixty-six thousand, nine hundred ninety-seven".