5955981 has 16 divisors (see below), whose sum is σ = 8273664. Its totient is φ = 3808064.

The previous prime is 5955959. The next prime is 5956003. The reversal of 5955981 is 1895595.

It is a happy number.

5955981 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (5955959) and next prime (5956003).

It is a cyclic number.

It is not a de Polignac number, because 5955981 - 2¹⁰ = 5954957 is a prime.

It is a super-2 number, since 2×5955981² = 70947419344722, which contains 22 as substring.

Its product of digits (81000) is a multiple of the sum of its prime divisors (900).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5955931) 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, 7075 + ... + 7871.

It is an arithmetic number, because the mean of its divisors is an integer number (517104).

Almost surely, 2^5955981 is an apocalyptic number.

5955981 is the 1544-th centered pentagonal number.

It is an amenable number.

5955981 is a deficient number, since it is larger than the sum of its proper divisors (2317683).

5955981 is a wasteful number, since it uses less digits than its factorization.

5955981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900.

The product of its digits is 81000, while the sum is 42.

The square root of 5955981 is about 2440.4878610638. The cubic root of 5955981 is about 181.2665912676.

The spelling of 5955981 in words is "five million, nine hundred fifty-five thousand, nine hundred eighty-one".