27823908025 has 27 divisors (see below), whose sum is σ = 35057457351. Its totient is φ = 21906167040.

The previous prime is 27823908019. The next prime is 27823908037. The reversal of 27823908025 is 52080932872.

The square root of 27823908025 is 166805.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 5274681129 + 22549226896 = 72627^2 + 150164^2 .

It is not a de Polignac number, because 27823908025 - 2⁷ = 27823907897 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 60883597 + ... + 60884053.

Almost surely, 2^27823908025 is an apocalyptic number.

27823908025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

27823908025 is the 166805-th square number.

27823908025 is the 83403-rd centered octagonal number.

It is an amenable number.

27823908025 is a deficient number, since it is larger than the sum of its proper divisors (7233549326).

27823908025 is an frugal number, since it uses more digits than its factorization.

27823908025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070 (or 535 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 27823908025 in words is "twenty-seven billion, eight hundred twenty-three million, nine hundred eight thousand, twenty-five".