53317572 has 96 divisors (see below), whose sum is σ = 163322880. Its totient is φ = 13115520.

The previous prime is 53317571. The next prime is 53317619. The reversal of 53317572 is 27571335.

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

It is not an unprimeable number, because it can be changed into a prime (53317571) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16038 + ... + 19074.

It is an arithmetic number, because the mean of its divisors is an integer number (1701280).

Almost surely, 2^53317572 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 53317572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81661440).

53317572 is an abundant number, since it is smaller than the sum of its proper divisors (110005308).

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

53317572 is a wasteful number, since it uses less digits than its factorization.

53317572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3081 (or 3079 counting only the distinct ones).

The product of its digits is 22050, while the sum is 33.

The square root of 53317572 is about 7301.8882489394. Note that the first 3 decimals coincide. The cubic root of 53317572 is about 376.3773279428.

The spelling of 53317572 in words is "fifty-three million, three hundred seventeen thousand, five hundred seventy-two".