1253312625 has 16 divisors (see below), whose sum is σ = 2085512832. Its totient is φ = 668433200.

The previous prime is 1253312623. The next prime is 1253312647. The reversal of 1253312625 is 5262133521.

It is not a de Polignac number, because 1253312625 - 2¹ = 1253312623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1253312592 and 1253312601.

It is not an unprimeable number, because it can be changed into a prime (1253312623) 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, 1670709 + ... + 1671458.

It is an arithmetic number, because the mean of its divisors is an integer number (130344552).

Almost surely, 2^1253312625 is an apocalyptic number.

1253312625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1253312625 is a deficient number, since it is larger than the sum of its proper divisors (832200207).

1253312625 is an equidigital number, since it uses as much as digits as its factorization.

1253312625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3342185 (or 3342175 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

The square root of 1253312625 is about 35402.1556547055. The cubic root of 1253312625 is about 1078.1680835545.

The spelling of 1253312625 in words is "one billion, two hundred fifty-three million, three hundred twelve thousand, six hundred twenty-five".