49477945 has 16 divisors (see below), whose sum is σ = 67588992. Its totient is φ = 34418560.

The previous prime is 49477933. The next prime is 49477949. The reversal of 49477945 is 54977494.

It is not a de Polignac number, because 49477945 - 2⁵ = 49477913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49477949) 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, 18292 + ... + 20821.

It is an arithmetic number, because the mean of its divisors is an integer number (4224312).

Almost surely, 2^49477945 is an apocalyptic number.

It is an amenable number.

49477945 is a deficient number, since it is larger than the sum of its proper divisors (18111047).

49477945 is a wasteful number, since it uses less digits than its factorization.

49477945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39152.

The product of its digits is 1270080, while the sum is 49.

The square root of 49477945 is about 7034.0560845077. The cubic root of 49477945 is about 367.1164833051.

The spelling of 49477945 in words is "forty-nine million, four hundred seventy-seven thousand, nine hundred forty-five".