53016638 has 8 divisors (see below), whose sum is σ = 79584120. Its totient is φ = 26488600.

The previous prime is 53016581. The next prime is 53016641. The reversal of 53016638 is 83661035.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×53016638³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6233 + ... + 12036.

It is an arithmetic number, because the mean of its divisors is an integer number (9948015).

Almost surely, 2^53016638 is an apocalyptic number.

53016638 is a deficient number, since it is larger than the sum of its proper divisors (26567482).

53016638 is a wasteful number, since it uses less digits than its factorization.

53016638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19722.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 53016638 is about 7281.2525021455. The cubic root of 53016638 is about 375.6678776509.

The spelling of 53016638 in words is "fifty-three million, sixteen thousand, six hundred thirty-eight".