5500981 has 12 divisors (see below), whose sum is σ = 5908864. Its totient is φ = 5115600.

The previous prime is 5500973. The next prime is 5500987. The reversal of 5500981 is 1890055.

It is not a de Polignac number, because 5500981 - 2³ = 5500973 is a prime.

It is a super-2 number, since 2×5500981² = 60521583924722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5500987) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25966 + ... + 26176.

Almost surely, 2^5500981 is an apocalyptic number.

It is an amenable number.

5500981 is a deficient number, since it is larger than the sum of its proper divisors (407883).

5500981 is a wasteful number, since it uses less digits than its factorization.

5500981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 5500981 is about 2345.4170204891. The cubic root of 5500981 is about 176.5279109052.

The spelling of 5500981 in words is "five million, five hundred thousand, nine hundred eighty-one".