5538655901 has 2 divisors, whose sum is σ = 5538655902. Its totient is φ = 5538655900.

The previous prime is 5538655897. The next prime is 5538655909. The reversal of 5538655901 is 1095568355.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4991563801 + 547092100 = 70651^2 + 23390^2 .

It is a cyclic number.

It is not a de Polignac number, because 5538655901 - 2² = 5538655897 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5538655909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2769327950 + 2769327951.

It is an arithmetic number, because the mean of its divisors is an integer number (2769327951).

Almost surely, 2^5538655901 is an apocalyptic number.

It is an amenable number.

5538655901 is a deficient number, since it is larger than the sum of its proper divisors (1).

5538655901 is an equidigital number, since it uses as much as digits as its factorization.

5538655901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810000, while the sum is 47.

The square root of 5538655901 is about 74422.1465761369. The cubic root of 5538655901 is about 1769.2999349867.

The spelling of 5538655901 in words is "five billion, five hundred thirty-eight million, six hundred fifty-five thousand, nine hundred one".