55740079 has 2 divisors, whose sum is σ = 55740080. Its totient is φ = 55740078.

The previous prime is 55740071. The next prime is 55740089. The reversal of 55740079 is 97004755.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55740079 - 2³ = 55740071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55740071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27870039 + 27870040.

It is an arithmetic number, because the mean of its divisors is an integer number (27870040).

Almost surely, 2^55740079 is an apocalyptic number.

55740079 is a deficient number, since it is larger than the sum of its proper divisors (1).

55740079 is an equidigital number, since it uses as much as digits as its factorization.

55740079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 44100, while the sum is 37.

The square root of 55740079 is about 7465.9278726760. The cubic root of 55740079 is about 381.9934005603.

The spelling of 55740079 in words is "fifty-five million, seven hundred forty thousand, seventy-nine".