20150885 has 8 divisors (see below), whose sum is σ = 24771096. Its totient is φ = 15727360.

The previous prime is 20150881. The next prime is 20150891. The reversal of 20150885 is 58805102.

It can be written as a sum of positive squares in 4 ways, for example, as 667489 + 19483396 = 817^2 + 4414^2 .

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

It is not a de Polignac number, because 20150885 - 2² = 20150881 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20150881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48944 + ... + 49353.

It is an arithmetic number, because the mean of its divisors is an integer number (3096387).

Almost surely, 2^20150885 is an apocalyptic number.

It is an amenable number.

20150885 is a deficient number, since it is larger than the sum of its proper divisors (4620211).

20150885 is an equidigital number, since it uses as much as digits as its factorization.

20150885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98343.

The product of its (nonzero) digits is 3200, while the sum is 29.

The square root of 20150885 is about 4488.9737134450. The cubic root of 20150885 is about 272.1226603994.

Adding to 20150885 its reverse (58805102), we get a palindrome (78955987).

The spelling of 20150885 in words is "twenty million, one hundred fifty thousand, eight hundred eighty-five".