53439712 has 48 divisors (see below), whose sum is σ = 109372032. Its totient is φ = 25683840.

The previous prime is 53439709. The next prime is 53439719. The reversal of 53439712 is 21793435.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53439719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97423 + ... + 97969.

It is an arithmetic number, because the mean of its divisors is an integer number (2278584).

Almost surely, 2^53439712 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 53439712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54686016).

53439712 is an abundant number, since it is smaller than the sum of its proper divisors (55932320).

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

53439712 is a wasteful number, since it uses less digits than its factorization.

53439712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671 (or 663 counting only the distinct ones).

The product of its digits is 22680, while the sum is 34.

The square root of 53439712 is about 7310.2470546487. The cubic root of 53439712 is about 376.6645107385.

The spelling of 53439712 in words is "fifty-three million, four hundred thirty-nine thousand, seven hundred twelve".