53213235 has 16 divisors (see below), whose sum is σ = 85341600. Its totient is φ = 28313600.

The previous prime is 53213233. The next prime is 53213257. The reversal of 53213235 is 53231235.

It is a happy number.

It is not a de Polignac number, because 53213235 - 2¹ = 53213233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53213233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2785 + ... + 10685.

It is an arithmetic number, because the mean of its divisors is an integer number (5333850).

Almost surely, 2^53213235 is an apocalyptic number.

53213235 is a deficient number, since it is larger than the sum of its proper divisors (32128365).

53213235 is a wasteful number, since it uses less digits than its factorization.

53213235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8358.

The product of its digits is 2700, while the sum is 24.

The square root of 53213235 is about 7294.7402284112. The cubic root of 53213235 is about 376.1316570598.

The spelling of 53213235 in words is "fifty-three million, two hundred thirteen thousand, two hundred thirty-five".