49180913 has 4 divisors (see below), whose sum is σ = 49215348. Its totient is φ = 49146480.

The previous prime is 49180907. The next prime is 49180921. The reversal of 49180913 is 31908194.

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 43454464 + 5726449 = 6592^2 + 2393^2 .

It is a cyclic number.

It is not a de Polignac number, because 49180913 - 2¹⁴ = 49164529 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (49180933) 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, 14978 + ... + 17963.

It is an arithmetic number, because the mean of its divisors is an integer number (12303837).

Almost surely, 2^49180913 is an apocalyptic number.

It is an amenable number.

49180913 is a deficient number, since it is larger than the sum of its proper divisors (34435).

49180913 is a wasteful number, since it uses less digits than its factorization.

49180913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34434.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 49180913 is about 7012.9104514460. The cubic root of 49180913 is about 366.3803688917.

The spelling of 49180913 in words is "forty-nine million, one hundred eighty thousand, nine hundred thirteen".