2500666253 has 2 divisors, whose sum is σ = 2500666254. Its totient is φ = 2500666252.

The previous prime is 2500666213. The next prime is 2500666271. The reversal of 2500666253 is 3526660052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1596641764 + 904024489 = 39958^2 + 30067^2 .

It is a cyclic number.

It is not a de Polignac number, because 2500666253 - 2¹⁰ = 2500665229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2500666213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250333126 + 1250333127.

It is an arithmetic number, because the mean of its divisors is an integer number (1250333127).

Almost surely, 2^2500666253 is an apocalyptic number.

It is an amenable number.

2500666253 is a deficient number, since it is larger than the sum of its proper divisors (1).

2500666253 is an equidigital number, since it uses as much as digits as its factorization.

2500666253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 2500666253 is about 50006.6620861661. The cubic root of 2500666253 is about 1357.3293635141.

The spelling of 2500666253 in words is "two billion, five hundred million, six hundred sixty-six thousand, two hundred fifty-three".