53020216 has 32 divisors (see below), whose sum is σ = 102841200. Its totient is φ = 25608960.

The previous prime is 53020211. The next prime is 53020217. The reversal of 53020216 is 61202035.

It is a happy number.

It is a super-2 number, since 2×53020216² = 5622286609373312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53020193 and 53020202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53020211) 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, 35011 + ... + 36493.

Almost surely, 2^53020216 is an apocalyptic number.

It is an amenable number.

53020216 is a deficient number, since it is larger than the sum of its proper divisors (49820984).

53020216 is a wasteful number, since it uses less digits than its factorization.

53020216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1639 (or 1635 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 53020216 is about 7281.4981974866. The cubic root of 53020216 is about 375.6763285164.

The spelling of 53020216 in words is "fifty-three million, twenty thousand, two hundred sixteen".