49045861 has 4 divisors (see below), whose sum is σ = 49098924. Its totient is φ = 48992800.

The previous prime is 49045837. The next prime is 49045879. The reversal of 49045861 is 16854094.

It is a happy number.

49045861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 33292900 + 15752961 = 5770^2 + 3969^2 .

It is a cyclic number.

It is not a de Polignac number, because 49045861 - 2¹³ = 49037669 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49045861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49045961) 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 3 ways as a sum of consecutive naturals, for example, 25120 + ... + 27001.

It is an arithmetic number, because the mean of its divisors is an integer number (12274731).

Almost surely, 2^49045861 is an apocalyptic number.

It is an amenable number.

49045861 is a deficient number, since it is larger than the sum of its proper divisors (53063).

49045861 is an equidigital number, since it uses as much as digits as its factorization.

49045861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53062.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 49045861 is about 7003.2750195890. The cubic root of 49045861 is about 366.0446982745.

The spelling of 49045861 in words is "forty-nine million, forty-five thousand, eight hundred sixty-one".