54785679 has 16 divisors (see below), whose sum is σ = 83295072. Its totient is φ = 31730688.

The previous prime is 54785581. The next prime is 54785681. The reversal of 54785679 is 97658745.

It is not a de Polignac number, because 54785679 - 2¹² = 54781583 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54785179) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40654 + ... + 41979.

It is an arithmetic number, because the mean of its divisors is an integer number (5205942).

Almost surely, 2^54785679 is an apocalyptic number.

54785679 is a deficient number, since it is larger than the sum of its proper divisors (28509393).

54785679 is a wasteful number, since it uses less digits than its factorization.

54785679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82666.

The product of its digits is 2116800, while the sum is 51.

The square root of 54785679 is about 7401.7348642058. The cubic root of 54785679 is about 379.8006317996.

The spelling of 54785679 in words is "fifty-four million, seven hundred eighty-five thousand, six hundred seventy-nine".