1252500265 has 4 divisors (see below), whose sum is σ = 1503000324. Its totient is φ = 1002000208.

The previous prime is 1252500241. The next prime is 1252500287. The reversal of 1252500265 is 5620052521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 329495104 + 923005161 = 18152^2 + 30381^2 .

It is a cyclic number.

It is not a de Polignac number, because 1252500265 - 2⁵ = 1252500233 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125250022 + ... + 125250031.

It is an arithmetic number, because the mean of its divisors is an integer number (375750081).

Almost surely, 2^1252500265 is an apocalyptic number.

It is an amenable number.

1252500265 is a deficient number, since it is larger than the sum of its proper divisors (250500059).

1252500265 is an equidigital number, since it uses as much as digits as its factorization.

1252500265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250500058.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 1252500265 is about 35390.6804822965. The cubic root of 1252500265 is about 1077.9350877026.

Adding to 1252500265 its reverse (5620052521), we get a palindrome (6872552786).

The spelling of 1252500265 in words is "one billion, two hundred fifty-two million, five hundred thousand, two hundred sixty-five".