54642547 has 4 divisors (see below), whose sum is σ = 54671656. Its totient is φ = 54613440.

The previous prime is 54642527. The next prime is 54642557. The reversal of 54642547 is 74524645.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54642547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54642527) 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, 11529 + ... + 15562.

It is an arithmetic number, because the mean of its divisors is an integer number (13667914).

Almost surely, 2^54642547 is an apocalyptic number.

54642547 is a deficient number, since it is larger than the sum of its proper divisors (29109).

54642547 is a wasteful number, since it uses less digits than its factorization.

54642547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29108.

The product of its digits is 134400, while the sum is 37.

The square root of 54642547 is about 7392.0597264903. The cubic root of 54642547 is about 379.4695900916.

The spelling of 54642547 in words is "fifty-four million, six hundred forty-two thousand, five hundred forty-seven".