53213829 has 4 divisors (see below), whose sum is σ = 70951776. Its totient is φ = 35475884.

The previous prime is 53213827. The next prime is 53213857. The reversal of 53213829 is 92831235.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53213829 - 2¹ = 53213827 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53213829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53213827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8868969 + ... + 8868974.

It is an arithmetic number, because the mean of its divisors is an integer number (17737944).

Almost surely, 2^53213829 is an apocalyptic number.

It is an amenable number.

53213829 is a deficient number, since it is larger than the sum of its proper divisors (17737947).

53213829 is a wasteful number, since it uses less digits than its factorization.

53213829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17737946.

The product of its digits is 12960, while the sum is 33.

The square root of 53213829 is about 7294.7809425643. The cubic root of 53213829 is about 376.1330565949.

The spelling of 53213829 in words is "fifty-three million, two hundred thirteen thousand, eight hundred twenty-nine".