5555001901 has 2 divisors, whose sum is σ = 5555001902. Its totient is φ = 5555001900.

The previous prime is 5555001869. The next prime is 5555001953. The reversal of 5555001901 is 1091005555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5076705001 + 478296900 = 71251^2 + 21870^2 .

It is a cyclic number.

It is not a de Polignac number, because 5555001901 - 2⁵ = 5555001869 is a prime.

It is a super-2 number, since 2×5555001901² = 61716092240227227602, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5555001961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2777500950 + 2777500951.

It is an arithmetic number, because the mean of its divisors is an integer number (2777500951).

Almost surely, 2^5555001901 is an apocalyptic number.

It is an amenable number.

5555001901 is a deficient number, since it is larger than the sum of its proper divisors (1).

5555001901 is an equidigital number, since it uses as much as digits as its factorization.

5555001901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5625, while the sum is 31.

The square root of 5555001901 is about 74531.8851297886. The cubic root of 5555001901 is about 1771.0387787740.

The spelling of 5555001901 in words is "five billion, five hundred fifty-five million, one thousand, nine hundred one".