49530121 has 4 divisors (see below), whose sum is σ = 49737600. Its totient is φ = 49322644.

The previous prime is 49530113. The next prime is 49530139. The reversal of 49530121 is 12103594.

49530121 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12103594 = 2 ⋅6051797.

It is a cyclic number.

It is not a de Polignac number, because 49530121 - 2³ = 49530113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49530721) 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, 103381 + ... + 103858.

It is an arithmetic number, because the mean of its divisors is an integer number (12434400).

Almost surely, 2^49530121 is an apocalyptic number.

It is an amenable number.

49530121 is a deficient number, since it is larger than the sum of its proper divisors (207479).

49530121 is a wasteful number, since it uses less digits than its factorization.

49530121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207478.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 49530121 is about 7037.7639204509. The cubic root of 49530121 is about 367.2454831421.

The spelling of 49530121 in words is "forty-nine million, five hundred thirty thousand, one hundred twenty-one".