53132215 has 4 divisors (see below), whose sum is σ = 63758664. Its totient is φ = 42505768.

The previous prime is 53132179. The next prime is 53132221. The reversal of 53132215 is 51223135.

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 53132215 - 2⁷ = 53132087 is a prime.

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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5313217 + ... + 5313226.

It is an arithmetic number, because the mean of its divisors is an integer number (15939666).

Almost surely, 2^53132215 is an apocalyptic number.

53132215 is a deficient number, since it is larger than the sum of its proper divisors (10626449).

53132215 is a wasteful number, since it uses less digits than its factorization.

53132215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10626448.

The product of its digits is 900, while the sum is 22.

The square root of 53132215 is about 7289.1847966697. The cubic root of 53132215 is about 375.9406665656.

The spelling of 53132215 in words is "fifty-three million, one hundred thirty-two thousand, two hundred fifteen".