955860881 has 2 divisors, whose sum is σ = 955860882. Its totient is φ = 955860880.

The previous prime is 955860833. The next prime is 955860931. The reversal of 955860881 is 188068559.

It is an a-pointer prime, because the next prime (955860931) can be obtained adding 955860881 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 589712656 + 366148225 = 24284^2 + 19135^2 .

It is a cyclic number.

It is not a de Polignac number, because 955860881 - 2¹⁸ = 955598737 is a prime.

It is a super-2 number, since 2×955860881² = 1827340047652192322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (955869881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 477930440 + 477930441.

It is an arithmetic number, because the mean of its divisors is an integer number (477930441).

Almost surely, 2^955860881 is an apocalyptic number.

It is an amenable number.

955860881 is a deficient number, since it is larger than the sum of its proper divisors (1).

955860881 is an equidigital number, since it uses as much as digits as its factorization.

955860881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 691200, while the sum is 50.

The square root of 955860881 is about 30916.9998706213. Note that the first 3 decimals coincide. The cubic root of 955860881 is about 985.0650170522.

The spelling of 955860881 in words is "nine hundred fifty-five million, eight hundred sixty thousand, eight hundred eighty-one".