20064755 has 8 divisors (see below), whose sum is σ = 24211824. Its totient is φ = 15962400.

The previous prime is 20064749. The next prime is 20064769. The reversal of 20064755 is 55746002.

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

It is not a de Polignac number, because 20064755 - 2⁴ = 20064739 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10181 + ... + 11990.

It is an arithmetic number, because the mean of its divisors is an integer number (3026478).

Almost surely, 2^20064755 is an apocalyptic number.

20064755 is a deficient number, since it is larger than the sum of its proper divisors (4147069).

20064755 is a wasteful number, since it uses less digits than its factorization.

20064755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22357.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 20064755 is about 4479.3699333723. The cubic root of 20064755 is about 271.7343995782.

The spelling of 20064755 in words is "twenty million, sixty-four thousand, seven hundred fifty-five".