55083779 has 2 divisors, whose sum is σ = 55083780. Its totient is φ = 55083778.

The previous prime is 55083773. The next prime is 55083803. The reversal of 55083779 is 97738055.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55083779 - 2¹² = 55079683 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (55083773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27541889 + 27541890.

It is an arithmetic number, because the mean of its divisors is an integer number (27541890).

Almost surely, 2^55083779 is an apocalyptic number.

55083779 is a deficient number, since it is larger than the sum of its proper divisors (1).

55083779 is an equidigital number, since it uses as much as digits as its factorization.

55083779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 264600, while the sum is 44.

The square root of 55083779 is about 7421.8447167803. The cubic root of 55083779 is about 380.4882436019.

The spelling of 55083779 in words is "fifty-five million, eighty-three thousand, seven hundred seventy-nine".