5501051081 has 2 divisors, whose sum is σ = 5501051082. Its totient is φ = 5501051080.

The previous prime is 5501051047. The next prime is 5501051113. The reversal of 5501051081 is 1801501055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5013348025 + 487703056 = 70805^2 + 22084^2 .

It is a cyclic number.

It is not a de Polignac number, because 5501051081 - 2²² = 5496856777 is a prime.

It is a super-2 number, since 2×5501051081² = 60523125991542537122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5501051081.

It is not a weakly prime, because it can be changed into another prime (5501051021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2750525540 + 2750525541.

It is an arithmetic number, because the mean of its divisors is an integer number (2750525541).

Almost surely, 2^5501051081 is an apocalyptic number.

It is an amenable number.

5501051081 is a deficient number, since it is larger than the sum of its proper divisors (1).

5501051081 is an equidigital number, since it uses as much as digits as its factorization.

5501051081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1000, while the sum is 26.

The square root of 5501051081 is about 74169.0709190832. The cubic root of 5501051081 is about 1765.2866054117.

The spelling of 5501051081 in words is "five billion, five hundred one million, fifty-one thousand, eighty-one".