49521857 has 16 divisors (see below), whose sum is σ = 61900800. Its totient is φ = 38489040.

The previous prime is 49521841. The next prime is 49521869. The reversal of 49521857 is 75812594.

49521857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 49521857 - 2⁴ = 49521841 is a prime.

It is a super-3 number, since 3×49521857³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49521257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47144 + ... + 48182.

It is an arithmetic number, because the mean of its divisors is an integer number (3868800).

Almost surely, 2^49521857 is an apocalyptic number.

It is an amenable number.

49521857 is a deficient number, since it is larger than the sum of its proper divisors (12378943).

49521857 is a wasteful number, since it uses less digits than its factorization.

49521857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1676.

The product of its digits is 100800, while the sum is 41.

The square root of 49521857 is about 7037.1767776574. The cubic root of 49521857 is about 367.2250572853.

The spelling of 49521857 in words is "forty-nine million, five hundred twenty-one thousand, eight hundred fifty-seven".