53533506 has 32 divisors (see below), whose sum is σ = 116706240. Its totient is φ = 16271424.

The previous prime is 53533499. The next prime is 53533511. The reversal of 53533506 is 60533535.

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, 2340 + ... + 10608.

It is an arithmetic number, because the mean of its divisors is an integer number (3647070).

Almost surely, 2^53533506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53533506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58353120).

53533506 is an abundant number, since it is smaller than the sum of its proper divisors (63172734).

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

53533506 is a wasteful number, since it uses less digits than its factorization.

53533506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8370.

The product of its (nonzero) digits is 20250, while the sum is 30.

The square root of 53533506 is about 7316.6594836715. The cubic root of 53533506 is about 376.8847478427.

The spelling of 53533506 in words is "fifty-three million, five hundred thirty-three thousand, five hundred six".