1252510625 has 10 divisors (see below), whose sum is σ = 1565138058. Its totient is φ = 1002008000.

The previous prime is 1252510601. The next prime is 1252510627. The reversal of 1252510625 is 5260152521.

It can be written as a sum of positive squares in 5 ways, for example, as 499611904 + 752898721 = 22352^2 + 27439^2 .

It is not a de Polignac number, because 1252510625 - 2¹² = 1252506529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1252510627) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1001384 + ... + 1002633.

Almost surely, 2^1252510625 is an apocalyptic number.

It is an amenable number.

1252510625 is a deficient number, since it is larger than the sum of its proper divisors (312627433).

1252510625 is an frugal number, since it uses more digits than its factorization.

1252510625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2004037 (or 2004022 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 1252510625 is about 35390.8268482103. The cubic root of 1252510625 is about 1077.9380597251.

The spelling of 1252510625 in words is "one billion, two hundred fifty-two million, five hundred ten thousand, six hundred twenty-five".