53430732 has 48 divisors (see below), whose sum is σ = 143001600. Its totient is φ = 17234640.

The previous prime is 53430721. The next prime is 53430737. The reversal of 53430732 is 23703435.

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 = 53430696 and 53430705.

It is not an unprimeable number, because it can be changed into a prime (53430737) 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, 4632 + ... + 11327.

It is an arithmetic number, because the mean of its divisors is an integer number (2979200).

Almost surely, 2^53430732 is an apocalyptic number.

It is an amenable number.

53430732 is an abundant number, since it is smaller than the sum of its proper divisors (89570868).

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

53430732 is a wasteful number, since it uses less digits than its factorization.

53430732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16003 (or 15995 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 27.

The square root of 53430732 is about 7309.6328225158. The cubic root of 53430732 is about 376.6434113435.

The spelling of 53430732 in words is "fifty-three million, four hundred thirty thousand, seven hundred thirty-two".