53423647 has 4 divisors (see below), whose sum is σ = 53952696. Its totient is φ = 52894600.

The previous prime is 53423621. The next prime is 53423651. The reversal of 53423647 is 74632435.

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 53423647 - 2⁷ = 53423519 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 (53423047) 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, 264373 + ... + 264574.

It is an arithmetic number, because the mean of its divisors is an integer number (13488174).

Almost surely, 2^53423647 is an apocalyptic number.

53423647 is a deficient number, since it is larger than the sum of its proper divisors (529049).

53423647 is a wasteful number, since it uses less digits than its factorization.

53423647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529048.

The product of its digits is 60480, while the sum is 34.

The square root of 53423647 is about 7309.1481719828. The cubic root of 53423647 is about 376.6267627692.

The spelling of 53423647 in words is "fifty-three million, four hundred twenty-three thousand, six hundred forty-seven".