53821606 has 16 divisors (see below), whose sum is σ = 84484944. Its totient is φ = 25687584.

The previous prime is 53821601. The next prime is 53821613. The reversal of 53821606 is 60612835.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53821601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2940 + ... + 10783.

It is an arithmetic number, because the mean of its divisors is an integer number (5280309).

Almost surely, 2^53821606 is an apocalyptic number.

53821606 is a deficient number, since it is larger than the sum of its proper divisors (30663338).

53821606 is a wasteful number, since it uses less digits than its factorization.

53821606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13815.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 53821606 is about 7336.3210126057. The cubic root of 53821606 is about 377.5596291929.

The spelling of 53821606 in words is "fifty-three million, eight hundred twenty-one thousand, six hundred six".