54451565 has 8 divisors (see below), whose sum is σ = 74676480. Its totient is φ = 37338192.

The previous prime is 54451559. The next prime is 54451583. The reversal of 54451565 is 56515445.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54451565 - 2¹² = 54447469 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 1555759 = 54451565 / (5 + 4 + 4 + 5 + 1 + 5 + 6 + 5).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 777845 + ... + 777914.

It is an arithmetic number, because the mean of its divisors is an integer number (9334560).

Almost surely, 2^54451565 is an apocalyptic number.

It is an amenable number.

54451565 is a deficient number, since it is larger than the sum of its proper divisors (20224915).

54451565 is a wasteful number, since it uses less digits than its factorization.

54451565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555771.

The product of its digits is 60000, while the sum is 35.

The square root of 54451565 is about 7379.1303688172. The cubic root of 54451565 is about 379.0269773776.

The spelling of 54451565 in words is "fifty-four million, four hundred fifty-one thousand, five hundred sixty-five".