53423403 has 8 divisors (see below), whose sum is σ = 77706816. Its totient is φ = 32377800.

The previous prime is 53423389. The next prime is 53423471. The reversal of 53423403 is 30432435.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53423403 - 2⁶ = 53423339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53423483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 809413 + ... + 809478.

It is an arithmetic number, because the mean of its divisors is an integer number (9713352).

Almost surely, 2^53423403 is an apocalyptic number.

53423403 is a deficient number, since it is larger than the sum of its proper divisors (24283413).

53423403 is a wasteful number, since it uses less digits than its factorization.

53423403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618905.

The product of its (nonzero) digits is 4320, while the sum is 24.

The square root of 53423403 is about 7309.1314805523. The cubic root of 53423403 is about 376.6261893835.

Adding to 53423403 its reverse (30432435), we get a palindrome (83855838).

The spelling of 53423403 in words is "fifty-three million, four hundred twenty-three thousand, four hundred three".