3955528981 has 2 divisors, whose sum is σ = 3955528982. Its totient is φ = 3955528980.

The previous prime is 3955528961. The next prime is 3955529033. The reversal of 3955528981 is 1898255593.

It is a happy number.

3955528981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3379096900 + 576432081 = 58130^2 + 24009^2 .

It is a cyclic number.

It is not a de Polignac number, because 3955528981 - 2¹⁵ = 3955496213 is a prime.

It is a super-2 number, since 2×3955528981² = 31292419039061796722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3955528961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1977764490 + 1977764491.

It is an arithmetic number, because the mean of its divisors is an integer number (1977764491).

Almost surely, 2^3955528981 is an apocalyptic number.

It is an amenable number.

3955528981 is a deficient number, since it is larger than the sum of its proper divisors (1).

3955528981 is an equidigital number, since it uses as much as digits as its factorization.

3955528981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888000, while the sum is 55.

The square root of 3955528981 is about 62892.9962793951. The cubic root of 3955528981 is about 1581.4963366819.

The spelling of 3955528981 in words is "three billion, nine hundred fifty-five million, five hundred twenty-eight thousand, nine hundred eighty-one".