669150250 has 32 divisors (see below), whose sum is σ = 1265099472. Its totient is φ = 265000000.

The previous prime is 669150241. The next prime is 669150253. The reversal of 669150250 is 52051966.

It is a happy number.

669150250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 98465929 + 570684321 = 9923^2 + 23889^2 .

It is not an unprimeable number, because it can be changed into a prime (669150253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12000 + ... + 38500.

Almost surely, 2^669150250 is an apocalyptic number.

669150250 is a deficient number, since it is larger than the sum of its proper divisors (595949222).

669150250 is a wasteful number, since it uses less digits than its factorization.

669150250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26619 (or 26609 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 669150250 is about 25867.9386499968. The cubic root of 669150250 is about 874.6639253570.

The spelling of 669150250 in words is "six hundred sixty-nine million, one hundred fifty thousand, two hundred fifty".