1085580025 has 6 divisors (see below), whose sum is σ = 1346119262. Its totient is φ = 868464000.

The previous prime is 1085579987. The next prime is 1085580121. The reversal of 1085580025 is 5200855801.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 4682896 + 1080897129 = 2164^2 + 32877^2 .

It is not a de Polignac number, because 1085580025 - 2⁹ = 1085579513 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21711576 + ... + 21711625.

Almost surely, 2^1085580025 is an apocalyptic number.

It is an amenable number.

1085580025 is a deficient number, since it is larger than the sum of its proper divisors (260539237).

1085580025 is an equidigital number, since it uses as much as digits as its factorization.

1085580025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43423211 (or 43423206 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 34.

The square root of 1085580025 is about 32948.1414498603. The cubic root of 1085580025 is about 1027.7495166214.

The spelling of 1085580025 in words is "one billion, eighty-five million, five hundred eighty thousand, twenty-five".