53504857 has 16 divisors (see below), whose sum is σ = 63043200. Its totient is φ = 44456832.

The previous prime is 53504827. The next prime is 53504879. The reversal of 53504857 is 75840535.

53504857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-53504857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53504807) 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, 44253 + ... + 45445.

It is an arithmetic number, because the mean of its divisors is an integer number (3940200).

Almost surely, 2^53504857 is an apocalyptic number.

It is an amenable number.

53504857 is a deficient number, since it is larger than the sum of its proper divisors (9538343).

53504857 is a wasteful number, since it uses less digits than its factorization.

53504857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392.

The product of its (nonzero) digits is 84000, while the sum is 37.

The square root of 53504857 is about 7314.7014293134. The cubic root of 53504857 is about 376.8175046111.

The spelling of 53504857 in words is "fifty-three million, five hundred four thousand, eight hundred fifty-seven".