1252737625 has 16 divisors (see below), whose sum is σ = 1564582032. Its totient is φ = 1001443200.

The previous prime is 1252737623. The next prime is 1252737631. The reversal of 1252737625 is 5267372521.

It can be written as a sum of positive squares in 8 ways, for example, as 734355801 + 518381824 = 27099^2 + 22768^2 .

It is not a de Polignac number, because 1252737625 - 2¹ = 1252737623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1252737623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216267 + ... + 221983.

It is an arithmetic number, because the mean of its divisors is an integer number (97786377).

Almost surely, 2^1252737625 is an apocalyptic number.

It is an amenable number.

1252737625 is a deficient number, since it is larger than the sum of its proper divisors (311844407).

1252737625 is an equidigital number, since it uses as much as digits as its factorization.

1252737625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7485 (or 7475 counting only the distinct ones).

The product of its digits is 176400, while the sum is 40.

The square root of 1252737625 is about 35394.0337486419. The cubic root of 1252737625 is about 1078.0031761810.

The spelling of 1252737625 in words is "one billion, two hundred fifty-two million, seven hundred thirty-seven thousand, six hundred twenty-five".