54320865 has 16 divisors (see below), whose sum is σ = 92026368. Its totient is φ = 27266816.

The previous prime is 54320863. The next prime is 54320879. The reversal of 54320865 is 56802345.

It is a cyclic number.

It is not a de Polignac number, because 54320865 - 2¹ = 54320863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54320863) 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, 106257 + ... + 106766.

It is an arithmetic number, because the mean of its divisors is an integer number (5751648).

Almost surely, 2^54320865 is an apocalyptic number.

It is an amenable number.

54320865 is a deficient number, since it is larger than the sum of its proper divisors (37705503).

54320865 is a wasteful number, since it uses less digits than its factorization.

54320865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213048.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 54320865 is about 7370.2689910206. The cubic root of 54320865 is about 378.7234751436.

The spelling of 54320865 in words is "fifty-four million, three hundred twenty thousand, eight hundred sixty-five".