53211005 has 4 divisors (see below), whose sum is σ = 63853212. Its totient is φ = 42568800.

The previous prime is 53210977. The next prime is 53211013. The reversal of 53211005 is 50011235.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13344409 + 39866596 = 3653^2 + 6314^2 .

It is not a de Polignac number, because 53211005 - 2⁸ = 53210749 is a prime.

It is a super-2 number, since 2×53211005² = 5662822106220050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5321096 + ... + 5321105.

It is an arithmetic number, because the mean of its divisors is an integer number (15963303).

Almost surely, 2^53211005 is an apocalyptic number.

It is an amenable number.

53211005 is a deficient number, since it is larger than the sum of its proper divisors (10642207).

53211005 is a wasteful number, since it uses less digits than its factorization.

53211005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10642206.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 53211005 is about 7294.5873769529. The cubic root of 53211005 is about 376.1264028198.

The spelling of 53211005 in words is "fifty-three million, two hundred eleven thousand, five".