1253533625 has 8 divisors (see below), whose sum is σ = 1564410120. Its totient is φ = 1002826800.

The previous prime is 1253533609. The next prime is 1253533627. The reversal of 1253533625 is 5263353521.

It can be written as a sum of positive squares in 4 ways, for example, as 95628841 + 1157904784 = 9779^2 + 34028^2 .

It is not a de Polignac number, because 1253533625 - 2⁴ = 1253533609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1253533627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5014010 + ... + 5014259.

It is an arithmetic number, because the mean of its divisors is an integer number (195551265).

Almost surely, 2^1253533625 is an apocalyptic number.

It is an amenable number.

1253533625 is a deficient number, since it is larger than the sum of its proper divisors (310876495).

1253533625 is an equidigital number, since it uses as much as digits as its factorization.

1253533625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10028284 (or 10028274 counting only the distinct ones).

The product of its digits is 81000, while the sum is 35.

The square root of 1253533625 is about 35405.2767959806. The cubic root of 1253533625 is about 1078.2314519267.

The spelling of 1253533625 in words is "one billion, two hundred fifty-three million, five hundred thirty-three thousand, six hundred twenty-five".