20887050 has 48 divisors (see below), whose sum is σ = 54853632. Its totient is φ = 5241600.

The previous prime is 20887037. The next prime is 20887063. The reversal of 20887050 is 5078802.

It is an interprime number because it is at equal distance from previous prime (20887037) and next prime (20887063).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20886999 and 20887017.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1546 + ... + 6645.

It is an arithmetic number, because the mean of its divisors is an integer number (1142784).

Almost surely, 2^20887050 is an apocalyptic number.

20887050 is an abundant number, since it is smaller than the sum of its proper divisors (33966582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20887050 is a wasteful number, since it uses less digits than its factorization.

20887050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8223 (or 8218 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 20887050 is about 4570.2352237057. The cubic root of 20887050 is about 275.3968924759.

The spelling of 20887050 in words is "twenty million, eight hundred eighty-seven thousand, fifty".