55866542 has 8 divisors (see below), whose sum is σ = 83834832. Its totient is φ = 27921600.

The previous prime is 55866541. The next prime is 55866581. The reversal of 55866542 is 24566855.

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

It is a self number, because there is not a number n which added to its sum of digits gives 55866542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55866541) 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, 2567 + ... + 10877.

It is an arithmetic number, because the mean of its divisors is an integer number (10479354).

Almost surely, 2^55866542 is an apocalyptic number.

55866542 is a deficient number, since it is larger than the sum of its proper divisors (27968290).

55866542 is a wasteful number, since it uses less digits than its factorization.

55866542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11674.

The product of its digits is 288000, while the sum is 41.

The square root of 55866542 is about 7474.3924167788. The cubic root of 55866542 is about 382.2820710259.

The spelling of 55866542 in words is "fifty-five million, eight hundred sixty-six thousand, five hundred forty-two".