55966739 has 2 divisors, whose sum is σ = 55966740. Its totient is φ = 55966738.

The previous prime is 55966727. The next prime is 55966777. The reversal of 55966739 is 93766955.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55966739 - 2⁸ = 55966483 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55966709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27983369 + 27983370.

It is an arithmetic number, because the mean of its divisors is an integer number (27983370).

Almost surely, 2^55966739 is an apocalyptic number.

55966739 is a deficient number, since it is larger than the sum of its proper divisors (1).

55966739 is an equidigital number, since it uses as much as digits as its factorization.

55966739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1530900, while the sum is 50.

The square root of 55966739 is about 7481.0920994197. The cubic root of 55966739 is about 382.5104763104.

The spelling of 55966739 in words is "fifty-five million, nine hundred sixty-six thousand, seven hundred thirty-nine".