2150725081 has 2 divisors, whose sum is σ = 2150725082. Its totient is φ = 2150725080.

The previous prime is 2150725021. The next prime is 2150725111. The reversal of 2150725081 is 1805270512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1613227225 + 537497856 = 40165^2 + 23184^2 .

It is a cyclic number.

It is not a de Polignac number, because 2150725081 - 2¹¹ = 2150723033 is a prime.

It is a super-2 number, since 2×2150725081² = 9251236748084913122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2150725021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075362540 + 1075362541.

It is an arithmetic number, because the mean of its divisors is an integer number (1075362541).

Almost surely, 2^2150725081 is an apocalyptic number.

It is an amenable number.

2150725081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2150725081 is an equidigital number, since it uses as much as digits as its factorization.

2150725081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 2150725081 is about 46375.9105678800. The cubic root of 2150725081 is about 1290.8079550848.

Adding to 2150725081 its reverse (1805270512), we get a palindrome (3955995593).

The spelling of 2150725081 in words is "two billion, one hundred fifty million, seven hundred twenty-five thousand, eighty-one".