53724665 has 8 divisors (see below), whose sum is σ = 67272768. Its totient is φ = 41110960.

The previous prime is 53724659. The next prime is 53724679. The reversal of 53724665 is 56642735.

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

It is not a de Polignac number, because 53724665 - 2⁸ = 53724409 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233471 + ... + 233700.

It is an arithmetic number, because the mean of its divisors is an integer number (8409096).

Almost surely, 2^53724665 is an apocalyptic number.

It is an amenable number.

53724665 is a deficient number, since it is larger than the sum of its proper divisors (13548103).

53724665 is a wasteful number, since it uses less digits than its factorization.

53724665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467199.

The product of its digits is 151200, while the sum is 38.

The square root of 53724665 is about 7329.7111129976. The cubic root of 53724665 is about 377.3328119508.

The spelling of 53724665 in words is "fifty-three million, seven hundred twenty-four thousand, six hundred sixty-five".