54216785 has 36 divisors (see below), whose sum is σ = 80005428. Its totient is φ = 35163072.

The previous prime is 54216769. The next prime is 54216787. The reversal of 54216785 is 58761245.

It can be written as a sum of positive squares in 2 ways, for example, as 6385729 + 47831056 = 2527^2 + 6916^2 .

It is not a de Polignac number, because 54216785 - 2⁴ = 54216769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54216787) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 88139 + ... + 88751.

It is an arithmetic number, because the mean of its divisors is an integer number (2222373).

Almost surely, 2^54216785 is an apocalyptic number.

It is an amenable number.

54216785 is a deficient number, since it is larger than the sum of its proper divisors (25788643).

54216785 is a wasteful number, since it uses less digits than its factorization.

54216785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670 (or 644 counting only the distinct ones).

The product of its digits is 67200, while the sum is 38.

The square root of 54216785 is about 7363.2048049745. The cubic root of 54216785 is about 378.4814395950.

The spelling of 54216785 in words is "fifty-four million, two hundred sixteen thousand, seven hundred eighty-five".