53364720 has 80 divisors (see below), whose sum is σ = 169310592. Its totient is φ = 13896960.

The previous prime is 53364713. The next prime is 53364721. The reversal of 53364720 is 2746335.

It is a tau number, because it is divible by the number of its divisors (80).

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 (53364721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7735 + ... + 12905.

Almost surely, 2^53364720 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 53364720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84655296).

53364720 is an abundant number, since it is smaller than the sum of its proper divisors (115945872).

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

53364720 is a wasteful number, since it uses less digits than its factorization.

53364720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5230 (or 5224 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 30.

The square root of 53364720 is about 7305.1160155058. The cubic root of 53364720 is about 376.4882370326.

The spelling of 53364720 in words is "fifty-three million, three hundred sixty-four thousand, seven hundred twenty".