249032066 has 4 divisors (see below), whose sum is σ = 373548102. Its totient is φ = 124516032.

The previous prime is 249032059. The next prime is 249032081. The reversal of 249032066 is 660230942.

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., 248976841 + 55225 = 15779^2 + 235^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62258015 + ... + 62258018.

Almost surely, 2^249032066 is an apocalyptic number.

249032066 is a deficient number, since it is larger than the sum of its proper divisors (124516036).

249032066 is a wasteful number, since it uses less digits than its factorization.

249032066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124516035.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 249032066 is about 15780.7498554410. The cubic root of 249032066 is about 629.1464598123.

The spelling of 249032066 in words is "two hundred forty-nine million, thirty-two thousand, sixty-six".