49995667 has 4 divisors (see below), whose sum is σ = 50077840. Its totient is φ = 49913496.

The previous prime is 49995637. The next prime is 49995679. The reversal of 49995667 is 76659994.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49995667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49995637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40167 + ... + 41392.

It is an arithmetic number, because the mean of its divisors is an integer number (12519460).

Almost surely, 2^49995667 is an apocalyptic number.

49995667 is a deficient number, since it is larger than the sum of its proper divisors (82173).

49995667 is an equidigital number, since it uses as much as digits as its factorization.

49995667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82172.

The product of its digits is 3674160, while the sum is 55.

The square root of 49995667 is about 7070.7614158590. The cubic root of 49995667 is about 368.3925076176.

The spelling of 49995667 in words is "forty-nine million, nine hundred ninety-five thousand, six hundred sixty-seven".