53436423 has 8 divisors (see below), whose sum is σ = 75439728. Its totient is φ = 33528704.

The previous prime is 53436421. The next prime is 53436431. The reversal of 53436423 is 32463435.

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

It is a cyclic number.

It is not a de Polignac number, because 53436423 - 2¹ = 53436421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53436421) 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, 523836 + ... + 523937.

It is an arithmetic number, because the mean of its divisors is an integer number (9429966).

Almost surely, 2^53436423 is an apocalyptic number.

53436423 is a deficient number, since it is larger than the sum of its proper divisors (22003305).

53436423 is a wasteful number, since it uses less digits than its factorization.

53436423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047793.

The product of its digits is 25920, while the sum is 30.

The square root of 53436423 is about 7310.0220929899. The cubic root of 53436423 is about 376.6567831832.

Adding to 53436423 its reverse (32463435), we get a palindrome (85899858).

The spelling of 53436423 in words is "fifty-three million, four hundred thirty-six thousand, four hundred twenty-three".