55749679 has 2 divisors, whose sum is σ = 55749680. Its totient is φ = 55749678.

The previous prime is 55749671. The next prime is 55749719. The reversal of 55749679 is 97694755.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55749679 - 2³ = 55749671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55749671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27874839 + 27874840.

It is an arithmetic number, because the mean of its divisors is an integer number (27874840).

Almost surely, 2^55749679 is an apocalyptic number.

55749679 is a deficient number, since it is larger than the sum of its proper divisors (1).

55749679 is an equidigital number, since it uses as much as digits as its factorization.

55749679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2381400, while the sum is 52.

The square root of 55749679 is about 7466.5707657532. The cubic root of 55749679 is about 382.0153292826.

The spelling of 55749679 in words is "fifty-five million, seven hundred forty-nine thousand, six hundred seventy-nine".