1025864508 has 12 divisors (see below), whose sum is σ = 2393683880. Its totient is φ = 341954832.

The previous prime is 1025864503. The next prime is 1025864513. The reversal of 1025864508 is 8054685201.

It is an interprime number because it is at equal distance from previous prime (1025864503) and next prime (1025864513).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025864503) 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 3 ways as a sum of consecutive naturals, for example, 42744343 + ... + 42744366.

Almost surely, 2^1025864508 is an apocalyptic number.

It is an amenable number.

1025864508 is an abundant number, since it is smaller than the sum of its proper divisors (1367819372).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1025864508 is a wasteful number, since it uses less digits than its factorization.

1025864508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85488716 (or 85488714 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 39.

The square root of 1025864508 is about 32029.1196881838. The cubic root of 1025864508 is about 1008.5482223491.

The spelling of 1025864508 in words is "one billion, twenty-five million, eight hundred sixty-four thousand, five hundred eight".