20825030 has 8 divisors (see below), whose sum is σ = 37485072. Its totient is φ = 8330008.

The previous prime is 20825023. The next prime is 20825041. The reversal of 20825030 is 3052802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20824993 and 20825011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1041242 + ... + 1041261.

It is an arithmetic number, because the mean of its divisors is an integer number (4685634).

Almost surely, 2^20825030 is an apocalyptic number.

20825030 is a deficient number, since it is larger than the sum of its proper divisors (16660042).

20825030 is a wasteful number, since it uses less digits than its factorization.

20825030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2082510.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 20825030 is about 4563.4449706335. Note that the first 3 decimals coincide. The cubic root of 20825030 is about 275.1240432134.

Adding to 20825030 its reverse (3052802), we get a palindrome (23877832).

The spelling of 20825030 in words is "twenty million, eight hundred twenty-five thousand, thirty".