1025384656 has 20 divisors (see below), whose sum is σ = 2010621312. Its totient is φ = 506514656.

The previous prime is 1025384641. The next prime is 1025384671. The reversal of 1025384656 is 6564835201.

It is an interprime number because it is at equal distance from previous prime (1025384641) and next prime (1025384671).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384736 + ... + 387391.

Almost surely, 2^1025384656 is an apocalyptic number.

1025384656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1025384656 is a deficient number, since it is larger than the sum of its proper divisors (985236656).

1025384656 is an equidigital number, since it uses as much as digits as its factorization.

1025384656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772218 (or 772212 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 1025384656 is about 32021.6279411275. The cubic root of 1025384656 is about 1008.3909470772.

The spelling of 1025384656 in words is "one billion, twenty-five million, three hundred eighty-four thousand, six hundred fifty-six".