20250285 has 64 divisors (see below), whose sum is σ = 37822464. Its totient is φ = 9158400.

The previous prime is 20250283. The next prime is 20250287. The reversal of 20250285 is 58205202.

It is an interprime number because it is at equal distance from previous prime (20250283) and next prime (20250287).

It is not a de Polignac number, because 20250285 - 2¹ = 20250283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20250283) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 189202 + ... + 189308.

It is an arithmetic number, because the mean of its divisors is an integer number (590976).

Almost surely, 2^20250285 is an apocalyptic number.

It is an amenable number.

20250285 is a deficient number, since it is larger than the sum of its proper divisors (17572179).

20250285 is a wasteful number, since it uses less digits than its factorization.

20250285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 20250285 is about 4500.0316665552. The cubic root of 20250285 is about 272.5693676333.

Adding to 20250285 its reverse (58205202), we get a palindrome (78455487).

The spelling of 20250285 in words is "twenty million, two hundred fifty thousand, two hundred eighty-five".