1055490555 has 16 divisors (see below), whose sum is σ = 1930040064. Its totient is φ = 482509920.

The previous prime is 1055490551. The next prime is 1055490571. The reversal of 1055490555 is 5550945501.

It is not a de Polignac number, because 1055490555 - 2² = 1055490551 is a prime.

It is a super-2 number, since 2×1055490555² = 2228120623388416050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1055490551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5026041 + ... + 5026250.

It is an arithmetic number, because the mean of its divisors is an integer number (120627504).

Almost surely, 2^1055490555 is an apocalyptic number.

1055490555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1055490555 is a deficient number, since it is larger than the sum of its proper divisors (874549509).

1055490555 is a wasteful number, since it uses less digits than its factorization.

1055490555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10052306.

The product of its (nonzero) digits is 112500, while the sum is 39.

The square root of 1055490555 is about 32488.3141298529. The cubic root of 1055490555 is about 1018.1648905042.

The spelling of 1055490555 in words is "one billion, fifty-five million, four hundred ninety thousand, five hundred fifty-five".