49918865 has 4 divisors (see below), whose sum is σ = 59902644. Its totient is φ = 39935088.

The previous prime is 49918861. The next prime is 49918867. The reversal of 49918865 is 56881994.

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 2 ways, for example, as 18905104 + 31013761 = 4348^2 + 5569^2 .

It is a cyclic number.

It is not a de Polignac number, because 49918865 - 2² = 49918861 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49918861) 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, 4991882 + ... + 4991891.

It is an arithmetic number, because the mean of its divisors is an integer number (14975661).

Almost surely, 2^49918865 is an apocalyptic number.

It is an amenable number.

49918865 is a deficient number, since it is larger than the sum of its proper divisors (9983779).

49918865 is an equidigital number, since it uses as much as digits as its factorization.

49918865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9983778.

The product of its digits is 622080, while the sum is 50.

The square root of 49918865 is about 7065.3283717036. The cubic root of 49918865 is about 368.2037727183.

The spelling of 49918865 in words is "forty-nine million, nine hundred eighteen thousand, eight hundred sixty-five".