55257750767 has 2 divisors, whose sum is σ = 55257750768. Its totient is φ = 55257750766.

The previous prime is 55257750689. The next prime is 55257750817. The reversal of 55257750767 is 76705775255.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55257750767 - 2¹² = 55257746671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55257756767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27628875383 + 27628875384.

It is an arithmetic number, because the mean of its divisors is an integer number (27628875384).

Almost surely, 2^55257750767 is an apocalyptic number.

55257750767 is a deficient number, since it is larger than the sum of its proper divisors (1).

55257750767 is an equidigital number, since it uses as much as digits as its factorization.

55257750767 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18007500, while the sum is 56.

The spelling of 55257750767 in words is "fifty-five billion, two hundred fifty-seven million, seven hundred fifty thousand, seven hundred sixty-seven".