3355525981 has 4 divisors (see below), whose sum is σ = 3355656700. Its totient is φ = 3355395264.

The previous prime is 3355525973. The next prime is 3355526017. The reversal of 3355525981 is 1895255533.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1098325881 + 2257200100 = 33141^2 + 47510^2 .

It is a cyclic number.

It is not a de Polignac number, because 3355525981 - 2³ = 3355525973 is a prime.

It is a super-2 number, since 2×3355525981² = 22519109218332024722, 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 (3355525931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12726 + ... + 82903.

It is an arithmetic number, because the mean of its divisors is an integer number (838914175).

Almost surely, 2^3355525981 is an apocalyptic number.

It is an amenable number.

3355525981 is a deficient number, since it is larger than the sum of its proper divisors (130719).

3355525981 is an equidigital number, since it uses as much as digits as its factorization.

3355525981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130718.

The product of its digits is 810000, while the sum is 46.

The square root of 3355525981 is about 57926.9020490480. The cubic root of 3355525981 is about 1497.1093933217.

It can be divided in two parts, 33555 and 25981, that added together give a square (59536 = 244²).

The spelling of 3355525981 in words is "three billion, three hundred fifty-five million, five hundred twenty-five thousand, nine hundred eighty-one".