20100250 has 64 divisors (see below), whose sum is σ = 40334112. Its totient is φ = 7488000.

The previous prime is 20100217. The next prime is 20100251. The reversal of 20100250 is 5200102.

It can be written as a sum of positive squares in 16 ways, for example, as 466489 + 19633761 = 683^2 + 4431^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (20100251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 379224 + ... + 379276.

Almost surely, 2^20100250 is an apocalyptic number.

20100250 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

20100250 is a wasteful number, since it uses less digits than its factorization.

20100250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 20100250 is about 4483.3302354388. The cubic root of 20100250 is about 271.8945399265.

Adding to 20100250 its reverse (5200102), we get a palindrome (25300352).

The spelling of 20100250 in words is "twenty million, one hundred thousand, two hundred fifty".