20500150 has 24 divisors (see below), whose sum is σ = 41597784. Its totient is φ = 7454400.

The previous prime is 20500097. The next prime is 20500159. The reversal of 20500150 is 5100502.

It is a self number, because there is not a number n which added to its sum of digits gives 20500150.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20500159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18087 + ... + 19186.

It is an arithmetic number, because the mean of its divisors is an integer number (1733241).

Almost surely, 2^20500150 is an apocalyptic number.

20500150 is an abundant number, since it is smaller than the sum of its proper divisors (21097634).

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

20500150 is a wasteful number, since it uses less digits than its factorization.

20500150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37296 (or 37291 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 13.

The square root of 20500150 is about 4527.7091337673. The cubic root of 20500150 is about 273.6858512631.

Adding to 20500150 its reverse (5100502), we get a palindrome (25600652).

The spelling of 20500150 in words is "twenty million, five hundred thousand, one hundred fifty".