20248895 has 4 divisors (see below), whose sum is σ = 24298680. Its totient is φ = 16199112.

The previous prime is 20248871. The next prime is 20248897. The reversal of 20248895 is 59884202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20248895 - 2⁶ = 20248831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20248897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2024885 + ... + 2024894.

It is an arithmetic number, because the mean of its divisors is an integer number (6074670).

Almost surely, 2^20248895 is an apocalyptic number.

20248895 is a deficient number, since it is larger than the sum of its proper divisors (4049785).

20248895 is an equidigital number, since it uses as much as digits as its factorization.

20248895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4049784.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 20248895 is about 4499.8772205472. The cubic root of 20248895 is about 272.5631310118.

It can be divided in two parts, 202 and 48895, that multiplied together give a triangular number (9876790 = T₄₄₄₄).

The spelling of 20248895 in words is "twenty million, two hundred forty-eight thousand, eight hundred ninety-five".