1025305253 has 12 divisors (see below), whose sum is σ = 1231178112. Its totient is φ = 850482360.

The previous prime is 1025305243. The next prime is 1025305277. The reversal of 1025305253 is 3525035201.

It is not a de Polignac number, because 1025305253 - 2⁸ = 1025304997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025305243) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 335975 + ... + 339012.

It is an arithmetic number, because the mean of its divisors is an integer number (102598176).

Almost surely, 2^1025305253 is an apocalyptic number.

It is an amenable number.

1025305253 is a deficient number, since it is larger than the sum of its proper divisors (205872859).

1025305253 is an equidigital number, since it uses as much as digits as its factorization.

1025305253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675032 (or 675025 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 1025305253 is about 32020.3880832197. The cubic root of 1025305253 is about 1008.3649173875.

The spelling of 1025305253 in words is "one billion, twenty-five million, three hundred five thousand, two hundred fifty-three".