49231261 has 4 divisors (see below), whose sum is σ = 51822400. Its totient is φ = 46640124.

The previous prime is 49231229. The next prime is 49231271. The reversal of 49231261 is 16213294.

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: 16213294 = 2 ⋅8106647.

It is a cyclic number.

It is not a de Polignac number, because 49231261 - 2⁵ = 49231229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49231271) 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, 1295541 + ... + 1295578.

It is an arithmetic number, because the mean of its divisors is an integer number (12955600).

Almost surely, 2^49231261 is an apocalyptic number.

It is an amenable number.

49231261 is a deficient number, since it is larger than the sum of its proper divisors (2591139).

49231261 is a wasteful number, since it uses less digits than its factorization.

49231261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591138.

The product of its digits is 2592, while the sum is 28.

The square root of 49231261 is about 7016.4991983182. The cubic root of 49231261 is about 366.5053511698.

The spelling of 49231261 in words is "forty-nine million, two hundred thirty-one thousand, two hundred sixty-one".