53072712 has 128 divisors (see below), whose sum is σ = 183859200. Its totient is φ = 13780800.

The previous prime is 53072699. The next prime is 53072731. The reversal of 53072712 is 21727035.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15037 + ... + 18227.

It is an arithmetic number, because the mean of its divisors is an integer number (1436400).

Almost surely, 2^53072712 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 53072712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91929600).

53072712 is an abundant number, since it is smaller than the sum of its proper divisors (130786488).

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

53072712 is a wasteful number, since it uses less digits than its factorization.

53072712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3224 (or 3214 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 53072712 is about 7285.1020583105. The cubic root of 53072712 is about 375.8002749452.

Adding to 53072712 its reverse (21727035), we get a palindrome (74799747).

The spelling of 53072712 in words is "fifty-three million, seventy-two thousand, seven hundred twelve".