20522025 has 24 divisors (see below), whose sum is σ = 37700960. Its totient is φ = 10944720.

The previous prime is 20522023. The next prime is 20522027. The reversal of 20522025 is 52022502.

It is an interprime number because it is at equal distance from previous prime (20522023) and next prime (20522027).

It is not a de Polignac number, because 20522025 - 2¹ = 20522023 is a prime.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 20521989 and 20522007.

It is not an unprimeable number, because it can be changed into a prime (20522023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14527 + ... + 15876.

Almost surely, 2^20522025 is an apocalyptic number.

20522025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20522025 is a deficient number, since it is larger than the sum of its proper divisors (17178935).

20522025 is a wasteful number, since it uses less digits than its factorization.

20522025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30422 (or 30411 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 20522025 is about 4530.1241704836. The cubic root of 20522025 is about 273.7831635559.

Adding to 20522025 its reverse (52022502), we get a palindrome (72544527).

The spelling of 20522025 in words is "twenty million, five hundred twenty-two thousand, twenty-five".