53446669 has 2 divisors, whose sum is σ = 53446670. Its totient is φ = 53446668.

The previous prime is 53446667. The next prime is 53446699. The reversal of 53446669 is 96664435.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41126569 + 12320100 = 6413^2 + 3510^2 .

It is a cyclic number.

It is not a de Polignac number, because 53446669 - 2¹ = 53446667 is a prime.

It is a super-2 number, since 2×53446669² = 5713092854391122, which contains 22 as substring.

Together with 53446667, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53446663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26723334 + 26723335.

It is an arithmetic number, because the mean of its divisors is an integer number (26723335).

Almost surely, 2^53446669 is an apocalyptic number.

It is an amenable number.

53446669 is a deficient number, since it is larger than the sum of its proper divisors (1).

53446669 is an equidigital number, since it uses as much as digits as its factorization.

53446669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 43.

The square root of 53446669 is about 7310.7228780744. The cubic root of 53446669 is about 376.6808552708.

The spelling of 53446669 in words is "fifty-three million, four hundred forty-six thousand, six hundred sixty-nine".