49995121 has 4 divisors (see below), whose sum is σ = 54540144. Its totient is φ = 45450100.

The previous prime is 49995119. The next prime is 49995131. The reversal of 49995121 is 12159994.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 49995121 - 2¹ = 49995119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49995131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2272495 + ... + 2272516.

It is an arithmetic number, because the mean of its divisors is an integer number (13635036).

Almost surely, 2^49995121 is an apocalyptic number.

It is an amenable number.

49995121 is a deficient number, since it is larger than the sum of its proper divisors (4545023).

49995121 is a wasteful number, since it uses less digits than its factorization.

49995121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4545022.

The product of its digits is 29160, while the sum is 40.

The square root of 49995121 is about 7070.7228060503. The cubic root of 49995121 is about 368.3911665478.

The spelling of 49995121 in words is "forty-nine million, nine hundred ninety-five thousand, one hundred twenty-one".