49255891 has 8 divisors (see below), whose sum is σ = 51077520. Its totient is φ = 47442528.

The previous prime is 49255889. The next prime is 49255897. The reversal of 49255891 is 19855294.

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

It is a cyclic number.

It is not a de Polignac number, because 49255891 - 2¹ = 49255889 is a prime.

It is a super-2 number, since 2×49255891² = 4852285596407762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49255897) 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 7 ways as a sum of consecutive naturals, for example, 11725 + ... + 15361.

It is an arithmetic number, because the mean of its divisors is an integer number (6384690).

Almost surely, 2^49255891 is an apocalyptic number.

49255891 is a deficient number, since it is larger than the sum of its proper divisors (1821629).

49255891 is a wasteful number, since it uses less digits than its factorization.

49255891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4133.

The product of its digits is 129600, while the sum is 43.

The square root of 49255891 is about 7018.2541276303. The cubic root of 49255891 is about 366.5664608635.

It can be divided in two parts, 4925 and 5891, that added together give a square (10816 = 104²).

The spelling of 49255891 in words is "forty-nine million, two hundred fifty-five thousand, eight hundred ninety-one".