5555251001 has 2 divisors, whose sum is σ = 5555251002. Its totient is φ = 5555251000.

The previous prime is 5555250997. The next prime is 5555251063. The reversal of 5555251001 is 1001525555.

5555251001 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4449023401 + 1106227600 = 66701^2 + 33260^2 .

It is a cyclic number.

It is not a de Polignac number, because 5555251001 - 2² = 5555250997 is a prime.

It is a super-2 number, since 2×5555251001² = 61721627368223004002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5555251201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2777625500 + 2777625501.

It is an arithmetic number, because the mean of its divisors is an integer number (2777625501).

Almost surely, 2^5555251001 is an apocalyptic number.

It is an amenable number.

5555251001 is a deficient number, since it is larger than the sum of its proper divisors (1).

5555251001 is an equidigital number, since it uses as much as digits as its factorization.

5555251001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6250, while the sum is 29.

The square root of 5555251001 is about 74533.5562079256. The cubic root of 5555251001 is about 1771.0652509621.

Adding to 5555251001 its reverse (1001525555), we get a palindrome (6556776556).

The spelling of 5555251001 in words is "five billion, five hundred fifty-five million, two hundred fifty-one thousand, one".