55067939 has 2 divisors, whose sum is σ = 55067940. Its totient is φ = 55067938.

The previous prime is 55067921. The next prime is 55067941. The reversal of 55067939 is 93976055.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55067939 - 2¹⁶ = 55002403 is a prime.

Together with 55067941, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55067939.

It is not a weakly prime, because it can be changed into another prime (55060939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27533969 + 27533970.

It is an arithmetic number, because the mean of its divisors is an integer number (27533970).

Almost surely, 2^55067939 is an apocalyptic number.

55067939 is a deficient number, since it is larger than the sum of its proper divisors (1).

55067939 is an equidigital number, since it uses as much as digits as its factorization.

55067939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 255150, while the sum is 44.

The square root of 55067939 is about 7420.7775199099. Note that the first 3 decimals coincide. The cubic root of 55067939 is about 380.4517687891.

The spelling of 55067939 in words is "fifty-five million, sixty-seven thousand, nine hundred thirty-nine".