20250522 has 12 divisors (see below), whose sum is σ = 43876170. Its totient is φ = 6750168.

The previous prime is 20250509. The next prime is 20250539. The reversal of 20250522 is 22505202.

It can be written as a sum of positive squares in only one way, i.e., 19368801 + 881721 = 4401^2 + 939^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1125029 = 20250522 / (2 + 0 + 2 + 5 + 0 + 5 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 20250495 and 20250504.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 562497 + ... + 562532.

Almost surely, 2^20250522 is an apocalyptic number.

20250522 is an abundant number, since it is smaller than the sum of its proper divisors (23625648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20250522 is a wasteful number, since it uses less digits than its factorization.

20250522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125037 (or 1125034 counting only the distinct ones).

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

The square root of 20250522 is about 4500.0579996262. The cubic root of 20250522 is about 272.5704309712.

Adding to 20250522 its reverse (22505202), we get a palindrome (42755724).

The spelling of 20250522 in words is "twenty million, two hundred fifty thousand, five hundred twenty-two".