49915121 has 8 divisors (see below), whose sum is σ = 51377760. Its totient is φ = 48473152.

The previous prime is 49915097. The next prime is 49915157. The reversal of 49915121 is 12151994.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49915121 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 (49915181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200 + ... + 9993.

It is an arithmetic number, because the mean of its divisors is an integer number (6422220).

Almost surely, 2^49915121 is an apocalyptic number.

It is an amenable number.

49915121 is a deficient number, since it is larger than the sum of its proper divisors (1462639).

49915121 is a wasteful number, since it uses less digits than its factorization.

49915121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10335.

The product of its digits is 3240, while the sum is 32.

The square root of 49915121 is about 7065.0634108973. The cubic root of 49915121 is about 368.1945671845.

The spelling of 49915121 in words is "forty-nine million, nine hundred fifteen thousand, one hundred twenty-one".