20248495 has 8 divisors (see below), whose sum is σ = 24361200. Its totient is φ = 16156800.

The previous prime is 20248489. The next prime is 20248511. The reversal of 20248495 is 59484202.

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

It is not a de Polignac number, because 20248495 - 2¹⁹ = 19724207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20248495.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3045 + ... + 7054.

It is an arithmetic number, because the mean of its divisors is an integer number (3045150).

Almost surely, 2^20248495 is an apocalyptic number.

20248495 is a deficient number, since it is larger than the sum of its proper divisors (4112705).

20248495 is a wasteful number, since it uses less digits than its factorization.

20248495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10505.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 20248495 is about 4499.8327746706. The cubic root of 20248495 is about 272.5613362477.

The spelling of 20248495 in words is "twenty million, two hundred forty-eight thousand, four hundred ninety-five".