52878585 has 16 divisors (see below), whose sum is σ = 89582976. Its totient is φ = 26542848.

The previous prime is 52878583. The next prime is 52878659. The reversal of 52878585 is 58587825.

It is a happy number.

It is not a de Polignac number, because 52878585 - 2¹ = 52878583 is a prime.

It is a super-2 number, since 2×52878585² = 5592289503204450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52878583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103429 + ... + 103938.

It is an arithmetic number, because the mean of its divisors is an integer number (5598936).

Almost surely, 2^52878585 is an apocalyptic number.

It is an amenable number.

52878585 is a deficient number, since it is larger than the sum of its proper divisors (36704391).

52878585 is a wasteful number, since it uses less digits than its factorization.

52878585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207392.

The product of its digits is 896000, while the sum is 48.

The square root of 52878585 is about 7271.7662916241. The cubic root of 52878585 is about 375.3415199876.

The spelling of 52878585 in words is "fifty-two million, eight hundred seventy-eight thousand, five hundred eighty-five".