66053311 has 2 divisors, whose sum is σ = 66053312. Its totient is φ = 66053310.

The previous prime is 66053297. The next prime is 66053321. The reversal of 66053311 is 11335066.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66053311 - 2⁹ = 66052799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66053321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33026655 + 33026656.

It is an arithmetic number, because the mean of its divisors is an integer number (33026656).

Almost surely, 2^66053311 is an apocalyptic number.

66053311 is a deficient number, since it is larger than the sum of its proper divisors (1).

66053311 is an equidigital number, since it uses as much as digits as its factorization.

66053311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 66053311 is about 8127.3188075773. The cubic root of 66053311 is about 404.2327821458.

Adding to 66053311 its reverse (11335066), we get a palindrome (77388377).

The spelling of 66053311 in words is "sixty-six million, fifty-three thousand, three hundred eleven".