53120732 has 48 divisors (see below), whose sum is σ = 115476480. Its totient is φ = 20865600.

The previous prime is 53120719. The next prime is 53120737. The reversal of 53120732 is 23702135.

It is a junction number, because it is equal to n+sod(n) for n = 53120698 and 53120707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53120737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14882 + ... + 18102.

It is an arithmetic number, because the mean of its divisors is an integer number (2405760).

Almost surely, 2^53120732 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 53120732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57738240).

53120732 is an abundant number, since it is smaller than the sum of its proper divisors (62355748).

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

53120732 is a wasteful number, since it uses less digits than its factorization.

53120732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3282 (or 3280 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 53120732 is about 7288.3970802914. The cubic root of 53120732 is about 375.9135816937.

Adding to 53120732 its reverse (23702135), we get a palindrome (76822867).

The spelling of 53120732 in words is "fifty-three million, one hundred twenty thousand, seven hundred thirty-two".