2502709381 has 2 divisors, whose sum is σ = 2502709382. Its totient is φ = 2502709380.

The previous prime is 2502709361. The next prime is 2502709397. The reversal of 2502709381 is 1839072052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2493504225 + 9205156 = 49935^2 + 3034^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2502709381 is a prime.

It is a super-2 number, since 2×2502709381² = 12527108491490806322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2502709381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2502709301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1251354690 + 1251354691.

It is an arithmetic number, because the mean of its divisors is an integer number (1251354691).

Almost surely, 2^2502709381 is an apocalyptic number.

It is an amenable number.

2502709381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2502709381 is an equidigital number, since it uses as much as digits as its factorization.

2502709381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 2502709381 is about 50027.0864732297. The cubic root of 2502709381 is about 1357.6989240531.

The spelling of 2502709381 in words is "two billion, five hundred two million, seven hundred nine thousand, three hundred eighty-one".