55122506479 has 2 divisors, whose sum is σ = 55122506480. Its totient is φ = 55122506478.

The previous prime is 55122506449. The next prime is 55122506533. The reversal of 55122506479 is 97460522155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55122506479 - 2³¹ = 52975022831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55122506429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27561253239 + 27561253240.

It is an arithmetic number, because the mean of its divisors is an integer number (27561253240).

Almost surely, 2^55122506479 is an apocalyptic number.

55122506479 is a deficient number, since it is larger than the sum of its proper divisors (1).

55122506479 is an equidigital number, since it uses as much as digits as its factorization.

55122506479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756000, while the sum is 46.

The spelling of 55122506479 in words is "fifty-five billion, one hundred twenty-two million, five hundred six thousand, four hundred seventy-nine".