1055520986 has 8 divisors (see below), whose sum is σ = 1705072404. Its totient is φ = 487163520.

The previous prime is 1055520937. The next prime is 1055521039. The reversal of 1055520986 is 6890255501.

It can be written as a sum of positive squares in 2 ways, for example, as 901140361 + 154380625 = 30019^2 + 12425^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1055520986² = 2228249103772824392, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20298455 + ... + 20298506.

Almost surely, 2^1055520986 is an apocalyptic number.

1055520986 is a deficient number, since it is larger than the sum of its proper divisors (649551418).

1055520986 is a wasteful number, since it uses less digits than its factorization.

1055520986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40596976.

The product of its (nonzero) digits is 108000, while the sum is 41.

The square root of 1055520986 is about 32488.7824641060. The cubic root of 1055520986 is about 1018.1746753630.

The spelling of 1055520986 in words is "one billion, fifty-five million, five hundred twenty thousand, nine hundred eighty-six".