2505650149 has 2 divisors, whose sum is σ = 2505650150. Its totient is φ = 2505650148.

The previous prime is 2505650093. The next prime is 2505650167. The reversal of 2505650149 is 9410565052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1974024900 + 531625249 = 44430^2 + 23057^2 .

It is a cyclic number.

It is not a de Polignac number, because 2505650149 - 2⁹ = 2505649637 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2505651149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1252825074 + 1252825075.

It is an arithmetic number, because the mean of its divisors is an integer number (1252825075).

Almost surely, 2^2505650149 is an apocalyptic number.

It is an amenable number.

2505650149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2505650149 is an equidigital number, since it uses as much as digits as its factorization.

2505650149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54000, while the sum is 37.

The square root of 2505650149 is about 50056.4696018407. The cubic root of 2505650149 is about 1358.2304965902.

The spelling of 2505650149 in words is "two billion, five hundred five million, six hundred fifty thousand, one hundred forty-nine".