54565521 has 8 divisors (see below), whose sum is σ = 72790464. Its totient is φ = 36358800.

The previous prime is 54565517. The next prime is 54565541. The reversal of 54565521 is 12556545.

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

It is not a de Polignac number, because 54565521 - 2² = 54565517 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54565541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5796 + ... + 11946.

It is an arithmetic number, because the mean of its divisors is an integer number (9098808).

Almost surely, 2^54565521 is an apocalyptic number.

It is an amenable number.

54565521 is a deficient number, since it is larger than the sum of its proper divisors (18224943).

54565521 is a wasteful number, since it uses less digits than its factorization.

54565521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9111.

The product of its digits is 30000, while the sum is 33.

The square root of 54565521 is about 7386.8478392343. The cubic root of 54565521 is about 379.2912018143.

It can be divided in two parts, 545 and 65521, that added together give a palindrome (66066).

The spelling of 54565521 in words is "fifty-four million, five hundred sixty-five thousand, five hundred twenty-one".