2500534909 has 2 divisors, whose sum is σ = 2500534910. Its totient is φ = 2500534908.

The previous prime is 2500534901. The next prime is 2500535039. The reversal of 2500534909 is 9094350052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1959832900 + 540702009 = 44270^2 + 23253^2 .

It is a cyclic number.

It is not a de Polignac number, because 2500534909 - 2³ = 2500534901 is a prime.

It is a super-2 number, since 2×2500534909² = 12505349662255276562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2500534901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250267454 + 1250267455.

It is an arithmetic number, because the mean of its divisors is an integer number (1250267455).

Almost surely, 2^2500534909 is an apocalyptic number.

It is an amenable number.

2500534909 is a deficient number, since it is larger than the sum of its proper divisors (1).

2500534909 is an equidigital number, since it uses as much as digits as its factorization.

2500534909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48600, while the sum is 37.

The square root of 2500534909 is about 50005.3488039030. The cubic root of 2500534909 is about 1357.3055991554.

The spelling of 2500534909 in words is "two billion, five hundred million, five hundred thirty-four thousand, nine hundred nine".