53747232 has 144 divisors (see below), whose sum is σ = 177500736. Its totient is φ = 13939200.

The previous prime is 53747201. The next prime is 53747249. The reversal of 53747232 is 23274735.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 53747193 and 53747202.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80982 + ... + 81642.

It is an arithmetic number, because the mean of its divisors is an integer number (1232644).

Almost surely, 2^53747232 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 53747232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88750368).

53747232 is an abundant number, since it is smaller than the sum of its proper divisors (123753504).

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

53747232 is a wasteful number, since it uses less digits than its factorization.

53747232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703 (or 684 counting only the distinct ones).

The product of its digits is 35280, while the sum is 33.

The square root of 53747232 is about 7331.2503708440. The cubic root of 53747232 is about 377.3856373311.

The spelling of 53747232 in words is "fifty-three million, seven hundred forty-seven thousand, two hundred thirty-two".