55479954377 has 2 divisors, whose sum is σ = 55479954378. Its totient is φ = 55479954376.

The previous prime is 55479954373. The next prime is 55479954437. The reversal of 55479954377 is 77345997455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42726543616 + 12753410761 = 206704^2 + 112931^2 .

It is a cyclic number.

It is not a de Polignac number, because 55479954377 - 2² = 55479954373 is a prime.

It is not a weakly prime, because it can be changed into another prime (55479954373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27739977188 + 27739977189.

It is an arithmetic number, because the mean of its divisors is an integer number (27739977189).

Almost surely, 2^55479954377 is an apocalyptic number.

It is an amenable number.

55479954377 is a deficient number, since it is larger than the sum of its proper divisors (1).

55479954377 is an equidigital number, since it uses as much as digits as its factorization.

55479954377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 166698000, while the sum is 65.

The spelling of 55479954377 in words is "fifty-five billion, four hundred seventy-nine million, nine hundred fifty-four thousand, three hundred seventy-seven".