20580265825 has 24 divisors (see below), whose sum is σ = 29760396800. Its totient is φ = 14112176400.

The previous prime is 20580265751. The next prime is 20580265843. The reversal of 20580265825 is 52856208502.

It is a de Polignac number, because none of the positive numbers 2^k-20580265825 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1191441 + ... + 1208590.

Almost surely, 2^20580265825 is an apocalyptic number.

20580265825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20580265825 is a deficient number, since it is larger than the sum of its proper divisors (9180130975).

20580265825 is an equidigital number, since it uses as much as digits as its factorization.

20580265825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2400062 (or 2400043 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 43.

The spelling of 20580265825 in words is "twenty billion, five hundred eighty million, two hundred sixty-five thousand, eight hundred twenty-five".