54785667 has 4 divisors (see below), whose sum is σ = 73047560. Its totient is φ = 36523776.

The previous prime is 54785581. The next prime is 54785681. The reversal of 54785667 is 76658745.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 54785667 - 2¹⁶ = 54720131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54789667) 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, 9130942 + ... + 9130947.

It is an arithmetic number, because the mean of its divisors is an integer number (18261890).

Almost surely, 2^54785667 is an apocalyptic number.

54785667 is a deficient number, since it is larger than the sum of its proper divisors (18261893).

54785667 is a wasteful number, since it uses less digits than its factorization.

54785667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18261892.

The product of its digits is 1411200, while the sum is 48.

The square root of 54785667 is about 7401.7340535850. The cubic root of 54785667 is about 379.8006040696.

The spelling of 54785667 in words is "fifty-four million, seven hundred eighty-five thousand, six hundred sixty-seven".