49666299 has 16 divisors (see below), whose sum is σ = 72537120. Its totient is φ = 30087680.

The previous prime is 49666289. The next prime is 49666307. The reversal of 49666299 is 99266694.

It is a cyclic number.

It is not a de Polignac number, because 49666299 - 2¹⁵ = 49633531 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (49666289) 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, 15312 + ... + 18269.

It is an arithmetic number, because the mean of its divisors is an integer number (4533570).

Almost surely, 2^49666299 is an apocalyptic number.

49666299 is a deficient number, since it is larger than the sum of its proper divisors (22870821).

49666299 is a wasteful number, since it uses less digits than its factorization.

49666299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33630.

The product of its digits is 1259712, while the sum is 51.

The square root of 49666299 is about 7047.4320855188. The cubic root of 49666299 is about 367.5817431197.

It can be divided in two parts, 496 and 66299, that added together give a triangular number (66795 = T₃₆₅).

The spelling of 49666299 in words is "forty-nine million, six hundred sixty-six thousand, two hundred ninety-nine".