55244844077947 has 2 divisors, whose sum is σ = 55244844077948. Its totient is φ = 55244844077946.

The previous prime is 55244844077923. The next prime is 55244844077957. The reversal of 55244844077947 is 74977044844255.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55244844077947 - 2¹⁵ = 55244844045179 is a prime.

It is a super-2 number, since 2×55244844077947² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55244844077957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27622422038973 + 27622422038974.

It is an arithmetic number, because the mean of its divisors is an integer number (27622422038974).

Almost surely, 2^{55244844077947} is an apocalyptic number.

55244844077947 is a deficient number, since it is larger than the sum of its proper divisors (1).

55244844077947 is an equidigital number, since it uses as much as digits as its factorization.

55244844077947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1264435200, while the sum is 70.

The spelling of 55244844077947 in words is "fifty-five trillion, two hundred forty-four billion, eight hundred forty-four million, seventy-seven thousand, nine hundred forty-seven".