55867939 has 4 divisors (see below), whose sum is σ = 56023920. Its totient is φ = 55711960.

The previous prime is 55867937. The next prime is 55867951. The reversal of 55867939 is 93976855.

55867939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 55867939 - 2¹ = 55867937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55867937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77452 + ... + 78169.

It is an arithmetic number, because the mean of its divisors is an integer number (14005980).

Almost surely, 2^55867939 is an apocalyptic number.

55867939 is a deficient number, since it is larger than the sum of its proper divisors (155981).

55867939 is a wasteful number, since it uses less digits than its factorization.

55867939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155980.

The product of its digits is 2041200, while the sum is 52.

The square root of 55867939 is about 7474.4858686066. The cubic root of 55867939 is about 382.2852574507.

The spelling of 55867939 in words is "fifty-five million, eight hundred sixty-seven thousand, nine hundred thirty-nine".