1055556518 has 16 divisors (see below), whose sum is σ = 1621159056. Its totient is φ = 515185440.

The previous prime is 1055556517. The next prime is 1055556539. The reversal of 1055556518 is 8156555501.

It is a super-2 number, since 2×1055556518² = 2228399125384568648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055556517) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 198008 + ... + 203268.

It is an arithmetic number, because the mean of its divisors is an integer number (101322441).

Almost surely, 2^1055556518 is an apocalyptic number.

1055556518 is a deficient number, since it is larger than the sum of its proper divisors (565602538).

1055556518 is a wasteful number, since it uses less digits than its factorization.

1055556518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7639.

The product of its (nonzero) digits is 150000, while the sum is 41.

The square root of 1055556518 is about 32489.3292944006. The cubic root of 1055556518 is about 1018.1861001719.

The spelling of 1055556518 in words is "one billion, fifty-five million, five hundred fifty-six thousand, five hundred eighteen".