20825078 has 16 divisors (see below), whose sum is σ = 32006016. Its totient is φ = 10158720.

The previous prime is 20825071. The next prime is 20825093. The reversal of 20825078 is 87052802.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20825071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23198 + ... + 24078.

It is an arithmetic number, because the mean of its divisors is an integer number (2000376).

Almost surely, 2^20825078 is an apocalyptic number.

20825078 is a deficient number, since it is larger than the sum of its proper divisors (11180938).

20825078 is a wasteful number, since it uses less digits than its factorization.

20825078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159.

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 20825078 is about 4563.4502298152. The cubic root of 20825078 is about 275.1242545928.

The spelling of 20825078 in words is "twenty million, eight hundred twenty-five thousand, seventy-eight".