2725451009 has 2 divisors, whose sum is σ = 2725451010. Its totient is φ = 2725451008.

The previous prime is 2725450961. The next prime is 2725451041. The reversal of 2725451009 is 9001545272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2683240000 + 42211009 = 51800^2 + 6497^2 .

It is a cyclic number.

It is not a de Polignac number, because 2725451009 - 2²⁰ = 2724402433 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2725451009.

It is not a weakly prime, because it can be changed into another prime (2725451609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1362725504 + 1362725505.

It is an arithmetic number, because the mean of its divisors is an integer number (1362725505).

Almost surely, 2^2725451009 is an apocalyptic number.

It is an amenable number.

2725451009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2725451009 is an equidigital number, since it uses as much as digits as its factorization.

2725451009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 2725451009 is about 52205.8522485746. The cubic root of 2725451009 is about 1396.8382747071.

The spelling of 2725451009 in words is "two billion, seven hundred twenty-five million, four hundred fifty-one thousand, nine".