49477865 has 4 divisors (see below), whose sum is σ = 59373444. Its totient is φ = 39582288.

The previous prime is 49477861. The next prime is 49477889. The reversal of 49477865 is 56877494.

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 37589161 + 11888704 = 6131^2 + 3448^2 .

It is a cyclic number.

It is not a de Polignac number, because 49477865 - 2² = 49477861 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49477861) 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, 4947782 + ... + 4947791.

It is an arithmetic number, because the mean of its divisors is an integer number (14843361).

Almost surely, 2^49477865 is an apocalyptic number.

It is an amenable number.

49477865 is a deficient number, since it is larger than the sum of its proper divisors (9895579).

49477865 is an equidigital number, since it uses as much as digits as its factorization.

49477865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9895578.

The product of its digits is 1693440, while the sum is 50.

The square root of 49477865 is about 7034.0503978860. The cubic root of 49477865 is about 367.1162854437.

The spelling of 49477865 in words is "forty-nine million, four hundred seventy-seven thousand, eight hundred sixty-five".