54512565 has 8 divisors (see below), whose sum is σ = 87220128. Its totient is φ = 29073360.

The previous prime is 54512561. The next prime is 54512587. The reversal of 54512565 is 56521545.

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

It is not a de Polignac number, because 54512565 - 2² = 54512561 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54512561) 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, 1817071 + ... + 1817100.

It is an arithmetic number, because the mean of its divisors is an integer number (10902516).

Almost surely, 2^54512565 is an apocalyptic number.

It is an amenable number.

54512565 is a deficient number, since it is larger than the sum of its proper divisors (32707563).

54512565 is a wasteful number, since it uses less digits than its factorization.

54512565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3634179.

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

The square root of 54512565 is about 7383.2624902546. The cubic root of 54512565 is about 379.1684610201.

The spelling of 54512565 in words is "fifty-four million, five hundred twelve thousand, five hundred sixty-five".