53730403 has 4 divisors (see below), whose sum is σ = 53755200. Its totient is φ = 53705608.

The previous prime is 53730373. The next prime is 53730407. The reversal of 53730403 is 30403735.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53730403 - 2¹⁷ = 53599331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53730407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8800 + ... + 13597.

It is an arithmetic number, because the mean of its divisors is an integer number (13438800).

Almost surely, 2^53730403 is an apocalyptic number.

53730403 is a deficient number, since it is larger than the sum of its proper divisors (24797).

53730403 is a wasteful number, since it uses less digits than its factorization.

53730403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24796.

The product of its (nonzero) digits is 3780, while the sum is 25.

The square root of 53730403 is about 7330.1025231575. The cubic root of 53730403 is about 377.3462450025.

The spelling of 53730403 in words is "fifty-three million, seven hundred thirty thousand, four hundred three".