632225666 has 4 divisors (see below), whose sum is σ = 948338502. Its totient is φ = 316112832.

The previous prime is 632225653. The next prime is 632225681. The reversal of 632225666 is 666522236.

It is a happy number.

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., 626050441 + 6175225 = 25021^2 + 2485^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158056415 + ... + 158056418.

Almost surely, 2^632225666 is an apocalyptic number.

632225666 is a deficient number, since it is larger than the sum of its proper divisors (316112836).

632225666 is a wasteful number, since it uses less digits than its factorization.

632225666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316112835.

The product of its digits is 155520, while the sum is 38.

The square root of 632225666 is about 25144.0980351255. The cubic root of 632225666 is about 858.2702142628.

The spelling of 632225666 in words is "six hundred thirty-two million, two hundred twenty-five thousand, six hundred sixty-six".