2501723249 has 2 divisors, whose sum is σ = 2501723250. Its totient is φ = 2501723248.

The previous prime is 2501723243. The next prime is 2501723299. The reversal of 2501723249 is 9423271052.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1382352400 + 1119370849 = 37180^2 + 33457^2 .

It is a cyclic number.

It is not a de Polignac number, because 2501723249 - 2¹⁶ = 2501657713 is a prime.

It is not a weakly prime, because it can be changed into another prime (2501723243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250861624 + 1250861625.

It is an arithmetic number, because the mean of its divisors is an integer number (1250861625).

Almost surely, 2^2501723249 is an apocalyptic number.

It is an amenable number.

2501723249 is a deficient number, since it is larger than the sum of its proper divisors (1).

2501723249 is an equidigital number, since it uses as much as digits as its factorization.

2501723249 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 35.

The square root of 2501723249 is about 50017.2295214359. The cubic root of 2501723249 is about 1357.5205778371.

The spelling of 2501723249 in words is "two billion, five hundred one million, seven hundred twenty-three thousand, two hundred forty-nine".