54864859 has 6 divisors (see below), whose sum is σ = 63822444. Its totient is φ = 47026980.

The previous prime is 54864857. The next prime is 54864869. The reversal of 54864859 is 95846845.

54864859 is nontrivially palindromic in base 15.

It is not a de Polignac number, because 54864859 - 2¹ = 54864857 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 1119691 = 54864859 / (5 + 4 + 8 + 6 + 4 + 8 + 5 + 9).

It is not an unprimeable number, because it can be changed into a prime (54864857) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 559797 + ... + 559894.

It is an arithmetic number, because the mean of its divisors is an integer number (10637074).

Almost surely, 2^54864859 is an apocalyptic number.

54864859 is a deficient number, since it is larger than the sum of its proper divisors (8957585).

54864859 is a wasteful number, since it uses less digits than its factorization.

54864859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119705 (or 1119698 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 49.

The square root of 54864859 is about 7407.0816790420. The cubic root of 54864859 is about 379.9835149820.

The spelling of 54864859 in words is "fifty-four million, eight hundred sixty-four thousand, eight hundred fifty-nine".