53212151 has 4 divisors (see below), whose sum is σ = 54928704. Its totient is φ = 51495600.

The previous prime is 53212147. The next prime is 53212171. The reversal of 53212151 is 15121235.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 53212151 - 2² = 53212147 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53212171) by changing a digit.

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, 858230 + ... + 858291.

It is an arithmetic number, because the mean of its divisors is an integer number (13732176).

Almost surely, 2^53212151 is an apocalyptic number.

53212151 is a deficient number, since it is larger than the sum of its proper divisors (1716553).

53212151 is a wasteful number, since it uses less digits than its factorization.

53212151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716552.

The product of its digits is 300, while the sum is 20.

The square root of 53212151 is about 7294.6659279230. The cubic root of 53212151 is about 376.1291029991.

Adding to 53212151 its reverse (15121235), we get a palindrome (68333386).

The spelling of 53212151 in words is "fifty-three million, two hundred twelve thousand, one hundred fifty-one".