53078720 has 56 divisors (see below), whose sum is σ = 129838704. Its totient is φ = 20653056.

The previous prime is 53078713. The next prime is 53078771. The reversal of 53078720 is 2787035.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9599 + ... + 14081.

Almost surely, 2^53078720 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 53078720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64919352).

53078720 is an abundant number, since it is smaller than the sum of its proper divisors (76759984).

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

53078720 is a wasteful number, since it uses less digits than its factorization.

53078720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4537 (or 4527 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 53078720 is about 7285.5143950170. The cubic root of 53078720 is about 375.8144550060.

The spelling of 53078720 in words is "fifty-three million, seventy-eight thousand, seven hundred twenty".