53603730 has 48 divisors (see below), whose sum is σ = 140773464. Its totient is φ = 14150400.

The previous prime is 53603729. The next prime is 53603761. The reversal of 53603730 is 3730635.

53603730 is a `hidden beast` number, since 53 + 603 + 7 + 3 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 53275401 + 328329 = 7299^2 + 573^2 .

It is a junction number, because it is equal to n+sod(n) for n = 53603694 and 53603703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6142 + ... + 12038.

Almost surely, 2^53603730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53603730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70386732).

53603730 is an abundant number, since it is smaller than the sum of its proper divisors (87169734).

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

53603730 is a wasteful number, since it uses less digits than its factorization.

53603730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6011 (or 6008 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 27.

The square root of 53603730 is about 7321.4568222451. The cubic root of 53603730 is about 377.0494720331.

The spelling of 53603730 in words is "fifty-three million, six hundred three thousand, seven hundred thirty".