49239961 has 4 divisors (see below), whose sum is σ = 49460992. Its totient is φ = 49018932.

The previous prime is 49239959. The next prime is 49239977. The reversal of 49239961 is 16993294.

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 49239961 - 2¹ = 49239959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49239901) 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, 110181 + ... + 110626.

It is an arithmetic number, because the mean of its divisors is an integer number (12365248).

Almost surely, 2^49239961 is an apocalyptic number.

It is an amenable number.

49239961 is a deficient number, since it is larger than the sum of its proper divisors (221031).

49239961 is a wasteful number, since it uses less digits than its factorization.

49239961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221030.

The product of its digits is 104976, while the sum is 43.

The square root of 49239961 is about 7017.1191382219. The cubic root of 49239961 is about 366.5269391384.

It can be divided in two parts, 4923 and 9961, that added together give a square (14884 = 122²).

The spelling of 49239961 in words is "forty-nine million, two hundred thirty-nine thousand, nine hundred sixty-one".