49662145 has 16 divisors (see below), whose sum is σ = 64410192. Its totient is φ = 36541440.

The previous prime is 49662139. The next prime is 49662149. The reversal of 49662145 is 54126694.

49662145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 28206721 + 21455424 = 5311^2 + 4632^2 .

It is a de Polignac number, because none of the positive numbers 2^k-49662145 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49662149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19125 + ... + 21565.

It is an arithmetic number, because the mean of its divisors is an integer number (4025637).

Almost surely, 2^49662145 is an apocalyptic number.

49662145 is the 4069-th octagonal number.

It is an amenable number.

49662145 is a deficient number, since it is larger than the sum of its proper divisors (14748047).

49662145 is a wasteful number, since it uses less digits than its factorization.

49662145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2772.

The product of its digits is 51840, while the sum is 37.

The square root of 49662145 is about 7047.1373620783. The cubic root of 49662145 is about 367.5714948751.

The spelling of 49662145 in words is "forty-nine million, six hundred sixty-two thousand, one hundred forty-five".