49288581 has 20 divisors (see below), whose sum is σ = 73842912. Its totient is φ = 32763528.

The previous prime is 49288579. The next prime is 49288583. The reversal of 49288581 is 18588294.

It is a happy number.

49288581 is a `hidden beast` number, since 49 + 28 + 8 + 581 = 666.

It is an interprime number because it is at equal distance from previous prime (49288579) and next prime (49288583).

It is not a de Polignac number, because 49288581 - 2¹ = 49288579 is a prime.

It is a super-2 number, since 2×49288581² = 4858728433987122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49288583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 37176 + ... + 38478.

Almost surely, 2^49288581 is an apocalyptic number.

It is an amenable number.

49288581 is a deficient number, since it is larger than the sum of its proper divisors (24554331).

49288581 is a wasteful number, since it uses less digits than its factorization.

49288581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1782 (or 1773 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 49288581 is about 7020.5826681266. The cubic root of 49288581 is about 366.6475368348.

The spelling of 49288581 in words is "forty-nine million, two hundred eighty-eight thousand, five hundred eighty-one".