49828581 has 64 divisors (see below), whose sum is σ = 87091200. Its totient is φ = 27820800.

The previous prime is 49828567. The next prime is 49828591. The reversal of 49828581 is 18582894.

It is a happy number.

49828581 is a `hidden beast` number, since 49 + 8 + 28 + 581 = 666.

It is not a de Polignac number, because 49828581 - 2⁷ = 49828453 is a prime.

It is a super-2 number, since 2×49828581² = 4965774968947122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49828591) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 358410 + ... + 358548.

It is an arithmetic number, because the mean of its divisors is an integer number (1360800).

Almost surely, 2^49828581 is an apocalyptic number.

It is an amenable number.

49828581 is a deficient number, since it is larger than the sum of its proper divisors (37262619).

49828581 is a wasteful number, since it uses less digits than its factorization.

49828581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 241 counting only the distinct ones).

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

The square root of 49828581 is about 7058.9362513059. The cubic root of 49828581 is about 367.9816591560.

The spelling of 49828581 in words is "forty-nine million, eight hundred twenty-eight thousand, five hundred eighty-one".