53216634 has 16 divisors (see below), whose sum is σ = 107411040. Its totient is φ = 17575920.

The previous prime is 53216633. The next prime is 53216689. The reversal of 53216634 is 43661235.

It is not an unprimeable number, because it can be changed into a prime (53216633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40032 + ... + 41339.

It is an arithmetic number, because the mean of its divisors is an integer number (6713190).

Almost surely, 2^53216634 is an apocalyptic number.

53216634 is an abundant number, since it is smaller than the sum of its proper divisors (54194406).

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

53216634 is a wasteful number, since it uses less digits than its factorization.

53216634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81485.

The product of its digits is 12960, while the sum is 30.

The square root of 53216634 is about 7294.9732007733. The cubic root of 53216634 is about 376.1396653700.

Adding to 53216634 its reverse (43661235), we get a palindrome (96877869).

The spelling of 53216634 in words is "fifty-three million, two hundred sixteen thousand, six hundred thirty-four".