2555517914258 has 4 divisors (see below), whose sum is σ = 3833276871390. Its totient is φ = 1277758957128.

The previous prime is 2555517914233. The next prime is 2555517914309. The reversal of 2555517914258 is 8524197155552.

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., 2552603749969 + 2914164289 = 1597687^2 + 53983^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2555517914197 and 2555517914206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 638879478563 + ... + 638879478566.

Almost surely, 2^{2555517914258} is an apocalyptic number.

2555517914258 is a deficient number, since it is larger than the sum of its proper divisors (1277758957132).

2555517914258 is a wasteful number, since it uses less digits than its factorization.

2555517914258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277758957131.

The product of its digits is 25200000, while the sum is 59.

The spelling of 2555517914258 in words is "two trillion, five hundred fifty-five billion, five hundred seventeen million, nine hundred fourteen thousand, two hundred fifty-eight".