53020416 has 144 divisors (see below), whose sum is σ = 155409408. Its totient is φ = 15974400.

The previous prime is 53020403. The next prime is 53020423. The reversal of 53020416 is 61402035.

It is a happy number.

It is a super-2 number, since 2×53020416² = 5622329025626112, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53020392 and 53020401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 404671 + ... + 404801.

It is an arithmetic number, because the mean of its divisors is an integer number (1079232).

Almost surely, 2^53020416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53020416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77704704).

53020416 is an abundant number, since it is smaller than the sum of its proper divisors (102388992).

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

53020416 is a wasteful number, since it uses less digits than its factorization.

53020416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 53020416 is about 7281.5119309111. The cubic root of 53020416 is about 375.6768008844.

The spelling of 53020416 in words is "fifty-three million, twenty thousand, four hundred sixteen".