52578994 has 32 divisors (see below), whose sum is σ = 91881216. Its totient is φ = 22344960.

The previous prime is 52578991. The next prime is 52579057. The reversal of 52578994 is 49987525.

It is a super-2 number, since 2×52578994² = 5529101220104072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52578991) 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 15 ways as a sum of consecutive naturals, for example, 19509 + ... + 22039.

It is an arithmetic number, because the mean of its divisors is an integer number (2871288).

Almost surely, 2^52578994 is an apocalyptic number.

52578994 is a deficient number, since it is larger than the sum of its proper divisors (39302222).

52578994 is a wasteful number, since it uses less digits than its factorization.

52578994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2610.

The product of its digits is 907200, while the sum is 49.

The square root of 52578994 is about 7251.1374280178. The cubic root of 52578994 is about 374.6313271478.

The spelling of 52578994 in words is "fifty-two million, five hundred seventy-eight thousand, nine hundred ninety-four".