49889281 has 8 divisors (see below), whose sum is σ = 53792424. Its totient is φ = 45995520.

The previous prime is 49889267. The next prime is 49889291. The reversal of 49889281 is 18298894.

It can be written as a sum of positive squares in 4 ways, for example, as 313600 + 49575681 = 560^2 + 7041^2 .

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 49889281 - 2⁵ = 49889249 is a prime.

It is a super-2 number, since 2×49889281² = 4977880717393922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49889291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11985 + ... + 15601.

It is an arithmetic number, because the mean of its divisors is an integer number (6724053).

It is a Proth number, since it is equal to 3045 ⋅ 2¹⁴ + 1 and 3045 < 2¹⁴.

Almost surely, 2^49889281 is an apocalyptic number.

It is an amenable number.

49889281 is a deficient number, since it is larger than the sum of its proper divisors (3903143).

49889281 is a wasteful number, since it uses less digits than its factorization.

49889281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4691.

The product of its digits is 331776, while the sum is 49.

The square root of 49889281 is about 7063.2344573857. The cubic root of 49889281 is about 368.1310207103.

The spelling of 49889281 in words is "forty-nine million, eight hundred eighty-nine thousand, two hundred eighty-one".