20827795025 has 48 divisors (see below), whose sum is σ = 27169689600. Its totient is φ = 15824228160.

The previous prime is 20827795007. The next prime is 20827795049. The reversal of 20827795025 is 52059772802.

It is not a de Polignac number, because 20827795025 - 2⁸ = 20827794769 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5474774 + ... + 5478576.

It is an arithmetic number, because the mean of its divisors is an integer number (566035200).

Almost surely, 2^20827795025 is an apocalyptic number.

20827795025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20827795025 is a deficient number, since it is larger than the sum of its proper divisors (6341894575).

20827795025 is a wasteful number, since it uses less digits than its factorization.

20827795025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3998 (or 3993 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 47.

The spelling of 20827795025 in words is "twenty billion, eight hundred twenty-seven million, seven hundred ninety-five thousand, twenty-five".