53621423 has 4 divisors (see below), whose sum is σ = 53641368. Its totient is φ = 53601480.

The previous prime is 53621371. The next prime is 53621437. The reversal of 53621423 is 32412635.

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 53621423 - 2⁸ = 53621167 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53621392 and 53621401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53621443) 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, 5168 + ... + 11573.

It is an arithmetic number, because the mean of its divisors is an integer number (13410342).

Almost surely, 2^53621423 is an apocalyptic number.

53621423 is a deficient number, since it is larger than the sum of its proper divisors (19945).

53621423 is a wasteful number, since it uses less digits than its factorization.

53621423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19944.

The product of its digits is 4320, while the sum is 26.

The square root of 53621423 is about 7322.6650203324. The cubic root of 53621423 is about 377.0909517489.

The spelling of 53621423 in words is "fifty-three million, six hundred twenty-one thousand, four hundred twenty-three".