1025750725 has 12 divisors (see below), whose sum is σ = 1272479940. Its totient is φ = 820246400.

The previous prime is 1025750683. The next prime is 1025750731. The reversal of 1025750725 is 5270575201.

It can be written as a sum of positive squares in 6 ways, for example, as 348606241 + 677144484 = 18671^2 + 26022^2 .

It is not a de Polignac number, because 1025750725 - 2⁷ = 1025750597 is a prime.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 61041 + ... + 76009.

It is an arithmetic number, because the mean of its divisors is an integer number (106039995).

Almost surely, 2^1025750725 is an apocalyptic number.

It is an amenable number.

1025750725 is a deficient number, since it is larger than the sum of its proper divisors (246729215).

1025750725 is a wasteful number, since it uses less digits than its factorization.

1025750725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17720 (or 17715 counting only the distinct ones).

The product of its (nonzero) digits is 24500, while the sum is 34.

The square root of 1025750725 is about 32027.3433959172. The cubic root of 1025750725 is about 1008.5109335115.

The spelling of 1025750725 in words is "one billion, twenty-five million, seven hundred fifty thousand, seven hundred twenty-five".