53015423 has 4 divisors (see below), whose sum is σ = 54015768. Its totient is φ = 52015080.

The previous prime is 53015407. The next prime is 53015429. The reversal of 53015423 is 32451035.

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 53015423 - 2⁴ = 53015407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53015429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500093 + ... + 500198.

It is an arithmetic number, because the mean of its divisors is an integer number (13503942).

Almost surely, 2^53015423 is an apocalyptic number.

53015423 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

53015423 is a deficient number, since it is larger than the sum of its proper divisors (1000345).

53015423 is a wasteful number, since it uses less digits than its factorization.

53015423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000344.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 53015423 is about 7281.1690682197. The cubic root of 53015423 is about 375.6650078602.

Adding to 53015423 its reverse (32451035), we get a palindrome (85466458).

The spelling of 53015423 in words is "fifty-three million, fifteen thousand, four hundred twenty-three".