1025425866 has 8 divisors (see below), whose sum is σ = 2050851744. Its totient is φ = 341808620.

The previous prime is 1025425847. The next prime is 1025425883. The reversal of 1025425866 is 6685245201.

It is a sphenic number, since it is the product of 3 distinct primes.

1025425866 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85452150 + ... + 85452161.

It is an arithmetic number, because the mean of its divisors is an integer number (256356468).

Almost surely, 2^1025425866 is an apocalyptic number.

1025425866 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1025425866 is a wasteful number, since it uses less digits than its factorization.

1025425866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170904316.

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 1025425866 is about 32022.2714060074. The cubic root of 1025425866 is about 1008.4044559050.

The spelling of 1025425866 in words is "one billion, twenty-five million, four hundred twenty-five thousand, eight hundred sixty-six".