19952885 has 8 divisors (see below), whose sum is σ = 23972280. Its totient is φ = 15943104.

The previous prime is 19952873. The next prime is 19952887. The reversal of 19952885 is 58825991.

It can be written as a sum of positive squares in 4 ways, for example, as 2093809 + 17859076 = 1447^2 + 4226^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 19952885 - 2²⁰ = 18904309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19952887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3479 + ... + 7211.

It is an arithmetic number, because the mean of its divisors is an integer number (2996535).

Almost surely, 2^19952885 is an apocalyptic number.

It is an amenable number.

19952885 is a deficient number, since it is larger than the sum of its proper divisors (4019395).

19952885 is a wasteful number, since it uses less digits than its factorization.

19952885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4807.

The product of its digits is 259200, while the sum is 47.

The square root of 19952885 is about 4466.8652319048. The cubic root of 19952885 is about 271.2284444210.

It can be divided in two parts, 1995 and 2885, that multiplied together give a palindrome (5755575).

The spelling of 19952885 in words is "nineteen million, nine hundred fifty-two thousand, eight hundred eighty-five".