36081556 has 24 divisors (see below), whose sum is σ = 72476096. Its totient is φ = 15396480.

The previous prime is 36081547. The next prime is 36081557. The reversal of 36081556 is 65518063.

It is a super-2 number, since 2×36081556² = 2603757366762272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36081557) 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, 4075 + ... + 9421.

Almost surely, 2^36081556 is an apocalyptic number.

It is an amenable number.

36081556 is an abundant number, since it is smaller than the sum of its proper divisors (36394540).

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

36081556 is a wasteful number, since it uses less digits than its factorization.

36081556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5599 (or 5597 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 36081556 is about 6006.7924885083. The cubic root of 36081556 is about 330.4418812588.

The spelling of 36081556 in words is "thirty-six million, eighty-one thousand, five hundred fifty-six".