53247516 has 72 divisors (see below), whose sum is σ = 145804176. Its totient is φ = 15079680.

The previous prime is 53247511. The next prime is 53247539. The reversal of 53247516 is 61574235.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53247511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80226 + ... + 80886.

It is an arithmetic number, because the mean of its divisors is an integer number (2025058).

Almost surely, 2^53247516 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 53247516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72902088).

53247516 is an abundant number, since it is smaller than the sum of its proper divisors (92556660).

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

53247516 is a wasteful number, since it uses less digits than its factorization.

53247516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819 (or 810 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 53247516 is about 7297.0895568028. The cubic root of 53247516 is about 376.2124101621.

The spelling of 53247516 in words is "fifty-three million, two hundred forty-seven thousand, five hundred sixteen".