53213616 has 30 divisors (see below), whose sum is σ = 148924620. Its totient is φ = 17737824.

The previous prime is 53213599. The next prime is 53213617. The reversal of 53213616 is 61631235.

53213616 is a `hidden beast` number, since 5 + 32 + 13 + 616 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 53213616.

It is not an unprimeable number, because it can be changed into a prime (53213617) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 184626 + ... + 184913.

It is an arithmetic number, because the mean of its divisors is an integer number (4964154).

Almost surely, 2^53213616 is an apocalyptic number.

It is an amenable number.

53213616 is an abundant number, since it is smaller than the sum of its proper divisors (95711004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53213616 is a wasteful number, since it uses less digits than its factorization.

53213616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369553 (or 369544 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 53213616 is about 7294.7663430709. The cubic root of 53213616 is about 376.1325547426.

The spelling of 53213616 in words is "fifty-three million, two hundred thirteen thousand, six hundred sixteen".