5501545961 has 2 divisors, whose sum is σ = 5501545962. Its totient is φ = 5501545960.

The previous prime is 5501545957. The next prime is 5501545981. The reversal of 5501545961 is 1695451055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3639105625 + 1862440336 = 60325^2 + 43156^2 .

It is a cyclic number.

It is not a de Polignac number, because 5501545961 - 2² = 5501545957 is a prime.

It is not a weakly prime, because it can be changed into another prime (5501545981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2750772980 + 2750772981.

It is an arithmetic number, because the mean of its divisors is an integer number (2750772981).

Almost surely, 2^5501545961 is an apocalyptic number.

It is an amenable number.

5501545961 is a deficient number, since it is larger than the sum of its proper divisors (1).

5501545961 is an equidigital number, since it uses as much as digits as its factorization.

5501545961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 135000, while the sum is 41.

The square root of 5501545961 is about 74172.4070055705. The cubic root of 5501545961 is about 1765.3395394678.

The spelling of 5501545961 in words is "five billion, five hundred one million, five hundred forty-five thousand, nine hundred sixty-one".