53285040 has 120 divisors (see below), whose sum is σ = 185644368. Its totient is φ = 14204160.

The previous prime is 53285039. The next prime is 53285047. The reversal of 53285040 is 4058235.

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 (27).

It is a junction number, because it is equal to n+sod(n) for n = 53284995 and 53285013.

It is not an unprimeable number, because it can be changed into a prime (53285047) 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, 18070 + ... + 20810.

Almost surely, 2^53285040 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 53285040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92822184).

53285040 is an abundant number, since it is smaller than the sum of its proper divisors (132359328).

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

53285040 is a wasteful number, since it uses less digits than its factorization.

53285040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2769 (or 2751 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 53285040 is about 7299.6602660672. The cubic root of 53285040 is about 376.3007628260.

The spelling of 53285040 in words is "fifty-three million, two hundred eighty-five thousand, forty".