53472720 has 120 divisors (see below), whose sum is σ = 192871584. Its totient is φ = 12219648.

The previous prime is 53472697. The next prime is 53472721. The reversal of 53472720 is 2727435.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53472721) 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, 9487 + ... + 14033.

Almost surely, 2^53472720 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 53472720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96435792).

53472720 is an abundant number, since it is smaller than the sum of its proper divisors (139398864).

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

53472720 is a wasteful number, since it uses less digits than its factorization.

53472720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4577 (or 4564 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 53472720 is about 7312.5043589731. The cubic root of 53472720 is about 376.7420459820.

The spelling of 53472720 in words is "fifty-three million, four hundred seventy-two thousand, seven hundred twenty".