53530380 has 36 divisors (see below), whose sum is σ = 162376032. Its totient is φ = 14274720.

The previous prime is 53530369. The next prime is 53530381. The reversal of 53530380 is 8303535.

53530380 is a `hidden beast` number, since 53 + 530 + 3 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (53530381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148516 + ... + 148875.

Almost surely, 2^53530380 is an apocalyptic number.

It is an amenable number.

53530380 is an abundant number, since it is smaller than the sum of its proper divisors (108845652).

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

53530380 is a wasteful number, since it uses less digits than its factorization.

53530380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297406 (or 297401 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 53530380 is about 7316.4458584753. The cubic root of 53530380 is about 376.8774118473.

The spelling of 53530380 in words is "fifty-three million, five hundred thirty thousand, three hundred eighty".