55918060949 has 2 divisors, whose sum is σ = 55918060950. Its totient is φ = 55918060948.

The previous prime is 55918060879. The next prime is 55918060967. The reversal of 55918060949 is 94906081955.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55918060900 + 49 = 236470^2 + 7^2 .

It is a cyclic number.

It is not a de Polignac number, because 55918060949 - 2²⁴ = 55901283733 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55918060894 and 55918060903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55918060349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27959030474 + 27959030475.

It is an arithmetic number, because the mean of its divisors is an integer number (27959030475).

Almost surely, 2^55918060949 is an apocalyptic number.

It is an amenable number.

55918060949 is a deficient number, since it is larger than the sum of its proper divisors (1).

55918060949 is an equidigital number, since it uses as much as digits as its factorization.

55918060949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3499200, while the sum is 56.

It can be divided in two parts, 559180609 and 49, that multiplied together give a square (27399849841 = 165529²).

The spelling of 55918060949 in words is "fifty-five billion, nine hundred eighteen million, sixty thousand, nine hundred forty-nine".