555555455 has 32 divisors (see below), whose sum is σ = 856203264. Its totient is φ = 336352896.

The previous prime is 555555431. The next prime is 555555457. The reversal of 555555455 is 554555555.

It is a cyclic number.

It is not a de Polignac number, because 555555455 - 2⁸ = 555555199 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555555457) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16079 + ... + 37008.

It is an arithmetic number, because the mean of its divisors is an integer number (26756352).

Almost surely, 2^555555455 is an apocalyptic number.

555555455 is a deficient number, since it is larger than the sum of its proper divisors (300647809).

555555455 is a wasteful number, since it uses less digits than its factorization.

555555455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53135.

The product of its digits is 1562500, while the sum is 44.

The square root of 555555455 is about 23570.2239064460. The cubic root of 555555455 is about 822.0706418452.

The spelling of 555555455 in words is "five hundred fifty-five million, five hundred fifty-five thousand, four hundred fifty-five".