1055549986 has 16 divisors (see below), whose sum is σ = 1630590336. Its totient is φ = 512098416.

The previous prime is 1055549981. The next prime is 1055550007. The reversal of 1055549986 is 6899455501.

It is a super-2 number, since 2×1055549986² = 2228371545889200392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1055549981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7725 + ... + 46591.

It is an arithmetic number, because the mean of its divisors is an integer number (101911896).

Almost surely, 2^1055549986 is an apocalyptic number.

1055549986 is a deficient number, since it is larger than the sum of its proper divisors (575040350).

1055549986 is a wasteful number, since it uses less digits than its factorization.

1055549986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39273.

The product of its (nonzero) digits is 1944000, while the sum is 52.

The square root of 1055549986 is about 32489.2287689320. The cubic root of 1055549986 is about 1018.1839999195.

The spelling of 1055549986 in words is "one billion, fifty-five million, five hundred forty-nine thousand, nine hundred eighty-six".