54561047 has 4 divisors (see below), whose sum is σ = 54726216. Its totient is φ = 54395880.

The previous prime is 54561043. The next prime is 54561049. The reversal of 54561047 is 74016545.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54561047 - 2² = 54561043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54561043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82088 + ... + 82749.

It is an arithmetic number, because the mean of its divisors is an integer number (13681554).

Almost surely, 2^54561047 is an apocalyptic number.

54561047 is a deficient number, since it is larger than the sum of its proper divisors (165169).

54561047 is a wasteful number, since it uses less digits than its factorization.

54561047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165168.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 54561047 is about 7386.5449974938. The cubic root of 54561047 is about 379.2808351017.

The spelling of 54561047 in words is "fifty-four million, five hundred sixty-one thousand, forty-seven".