1252500515449 has 2 divisors, whose sum is σ = 1252500515450. Its totient is φ = 1252500515448.

The previous prime is 1252500515401. The next prime is 1252500515467. The reversal of 1252500515449 is 9445150052521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1207157071849 + 45343443600 = 1098707^2 + 212940^2 .

It is a cyclic number.

It is not a de Polignac number, because 1252500515449 - 2¹⁹ = 1252499991161 is a prime.

It is not a weakly prime, because it can be changed into another prime (1252500518449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626250257724 + 626250257725.

It is an arithmetic number, because the mean of its divisors is an integer number (626250257725).

Almost surely, 2^{1252500515449} is an apocalyptic number.

It is an amenable number.

1252500515449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252500515449 is an equidigital number, since it uses as much as digits as its factorization.

1252500515449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360000, while the sum is 43.

The spelling of 1252500515449 in words is "one trillion, two hundred fifty-two billion, five hundred million, five hundred fifteen thousand, four hundred forty-nine".