3555240961 has 2 divisors, whose sum is σ = 3555240962. Its totient is φ = 3555240960.

The previous prime is 3555240937. The next prime is 3555240967. The reversal of 3555240961 is 1690425553.

3555240961 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3119892736 + 435348225 = 55856^2 + 20865^2 .

It is a cyclic number.

It is not a de Polignac number, because 3555240961 - 2⁵ = 3555240929 is a prime.

It is not a weakly prime, because it can be changed into another prime (3555240967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1777620480 + 1777620481.

It is an arithmetic number, because the mean of its divisors is an integer number (1777620481).

Almost surely, 2^3555240961 is an apocalyptic number.

It is an amenable number.

3555240961 is a deficient number, since it is larger than the sum of its proper divisors (1).

3555240961 is an equidigital number, since it uses as much as digits as its factorization.

3555240961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162000, while the sum is 40.

The square root of 3555240961 is about 59625.8413860970. The cubic root of 3555240961 is about 1526.2406403015.

The spelling of 3555240961 in words is "three billion, five hundred fifty-five million, two hundred forty thousand, nine hundred sixty-one".