55061939 has 2 divisors, whose sum is σ = 55061940. Its totient is φ = 55061938.

The previous prime is 55061933. The next prime is 55061969. The reversal of 55061939 is 93916055.

55061939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55061939 - 2⁸ = 55061683 is a prime.

It is not a weakly prime, because it can be changed into another prime (55061933) 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 as a sum of consecutive naturals, namely, 27530969 + 27530970.

It is an arithmetic number, because the mean of its divisors is an integer number (27530970).

Almost surely, 2^55061939 is an apocalyptic number.

55061939 is a deficient number, since it is larger than the sum of its proper divisors (1).

55061939 is an equidigital number, since it uses as much as digits as its factorization.

55061939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36450, while the sum is 38.

The square root of 55061939 is about 7420.3732385912. The cubic root of 55061939 is about 380.4379507457.

The spelling of 55061939 in words is "fifty-five million, sixty-one thousand, nine hundred thirty-nine".