55057775755258 has 4 divisors (see below), whose sum is σ = 82586663632890. Its totient is φ = 27528887877628.

The previous prime is 55057775755247. The next prime is 55057775755271. The reversal of 55057775755258 is 85255757775055.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 52899394600809 + 2158381154449 = 7273197^2 + 1469143^2 .

It is a super-2 number, since 2×55057775755258² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13764443938813 + ... + 13764443938816.

Almost surely, 2^{55057775755258} is an apocalyptic number.

55057775755258 is a deficient number, since it is larger than the sum of its proper divisors (27528887877632).

55057775755258 is a wasteful number, since it uses less digits than its factorization.

55057775755258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27528887877631.

The product of its (nonzero) digits is 3001250000, while the sum is 73.

The spelling of 55057775755258 in words is "fifty-five trillion, fifty-seven billion, seven hundred seventy-five million, seven hundred fifty-five thousand, two hundred fifty-eight".