1253751625 has 16 divisors (see below), whose sum is σ = 1788209280. Its totient is φ = 859714800.

The previous prime is 1253751601. The next prime is 1253751647. The reversal of 1253751625 is 5261573521.

It is not a de Polignac number, because 1253751625 - 2⁷ = 1253751497 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 715555 + ... + 717304.

It is an arithmetic number, because the mean of its divisors is an integer number (111763080).

Almost surely, 2^1253751625 is an apocalyptic number.

It is an amenable number.

1253751625 is a deficient number, since it is larger than the sum of its proper divisors (534457655).

1253751625 is an equidigital number, since it uses as much as digits as its factorization.

1253751625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432881 (or 1432871 counting only the distinct ones).

The product of its digits is 63000, while the sum is 37.

The square root of 1253751625 is about 35408.3552992793. The cubic root of 1253751625 is about 1078.2939527981.

The spelling of 1253751625 in words is "one billion, two hundred fifty-three million, seven hundred fifty-one thousand, six hundred twenty-five".