1055250018 has 20 divisors (see below), whose sum is σ = 2364542070. Its totient is φ = 351749952.

The previous prime is 1055249963. The next prime is 1055250019. The reversal of 1055250018 is 8100525501.

1055250018 is a `hidden beast` number, since 105 + 52 + 500 + 1 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 606784689 + 448465329 = 24633^2 + 21177^2 .

It is a super-2 number, since 2×1055250018² = 2227105200978000648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1055249973 and 1055250000.

It is not an unprimeable number, because it can be changed into a prime (1055250019) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3256783 + ... + 3257106.

Almost surely, 2^1055250018 is an apocalyptic number.

1055250018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1055250018 is an abundant number, since it is smaller than the sum of its proper divisors (1309292052).

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

1055250018 is an equidigital number, since it uses as much as digits as its factorization.

1055250018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6513903 (or 6513894 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

The square root of 1055250018 is about 32484.6120186158. The cubic root of 1055250018 is about 1018.0875410249.

Adding to 1055250018 its reverse (8100525501), we get a palindrome (9155775519).

The spelling of 1055250018 in words is "one billion, fifty-five million, two hundred fifty thousand, eighteen".