667225274 has 4 divisors (see below), whose sum is σ = 1000837914. Its totient is φ = 333612636.

The previous prime is 667225253. The next prime is 667225283. The reversal of 667225274 is 472522766.

667225274 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 581533225 + 85692049 = 24115^2 + 9257^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166806317 + ... + 166806320.

Almost surely, 2^667225274 is an apocalyptic number.

667225274 is a deficient number, since it is larger than the sum of its proper divisors (333612640).

667225274 is a wasteful number, since it uses less digits than its factorization.

667225274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333612639.

The product of its digits is 282240, while the sum is 41.

The square root of 667225274 is about 25830.7040941590. The cubic root of 667225274 is about 873.8243908465.

The spelling of 667225274 in words is "six hundred sixty-seven million, two hundred twenty-five thousand, two hundred seventy-four".