1055550860 has 48 divisors (see below), whose sum is σ = 2728197696. Its totient is φ = 334063872.

The previous prime is 1055550857. The next prime is 1055550869. The reversal of 1055550860 is 680555501.

It is a super-2 number, since 2×1055550860² = 2228375236093479200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 1055550860.

It is not an unprimeable number, because it can be changed into a prime (1055550869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 288167 + ... + 291806.

It is an arithmetic number, because the mean of its divisors is an integer number (56837452).

Almost surely, 2^1055550860 is an apocalyptic number.

1055550860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1055550860 is an abundant number, since it is smaller than the sum of its proper divisors (1672646836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1055550860 is a wasteful number, since it uses less digits than its factorization.

1055550860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580002 (or 580000 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 35.

The square root of 1055550860 is about 32489.2422195409. The cubic root of 1055550860 is about 1018.1842809397.

The spelling of 1055550860 in words is "one billion, fifty-five million, five hundred fifty thousand, eight hundred sixty".