20250495 has 12 divisors (see below), whose sum is σ = 35100936. Its totient is φ = 10800240.

The previous prime is 20250491. The next prime is 20250509. The reversal of 20250495 is 59405202.

It is not a de Polignac number, because 20250495 - 2² = 20250491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20250491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 224961 + ... + 225050.

It is an arithmetic number, because the mean of its divisors is an integer number (2925078).

Almost surely, 2^20250495 is an apocalyptic number.

20250495 is a deficient number, since it is larger than the sum of its proper divisors (14850441).

20250495 is a wasteful number, since it uses less digits than its factorization.

20250495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450022 (or 450019 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 20250495 is about 4500.0549996639. The cubic root of 20250495 is about 272.5703098319.

Adding to 20250495 its reverse (59405202), we get a palindrome (79655697).

The spelling of 20250495 in words is "twenty million, two hundred fifty thousand, four hundred ninety-five".