20853150 has 24 divisors (see below), whose sum is σ = 51716184. Its totient is φ = 5560800.

The previous prime is 20853143. The next prime is 20853187. The reversal of 20853150 is 5135802.

It is a self number, because there is not a number n which added to its sum of digits gives 20853150.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69361 + ... + 69660.

It is an arithmetic number, because the mean of its divisors is an integer number (2154841).

Almost surely, 2^20853150 is an apocalyptic number.

20853150 is an abundant number, since it is smaller than the sum of its proper divisors (30863034).

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

20853150 is a wasteful number, since it uses less digits than its factorization.

20853150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139036 (or 139031 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 20853150 is about 4566.5249369734. The cubic root of 20853150 is about 275.2478206824.

Adding to 20853150 its reverse (5135802), we get a palindrome (25988952).

The spelling of 20853150 in words is "twenty million, eight hundred fifty-three thousand, one hundred fifty".