52578999 has 12 divisors (see below), whose sum is σ = 82851912. Its totient is φ = 31866000.

The previous prime is 52578991. The next prime is 52579057. The reversal of 52578999 is 99987525.

52578999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52578999 - 2³ = 52578991 is a prime.

It is a super-2 number, since 2×52578999² = 5529102271684002, which contains 22 as substring.

It is a congruent number.

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 (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 265452 + ... + 265649.

It is an arithmetic number, because the mean of its divisors is an integer number (6904326).

Almost surely, 2^52578999 is an apocalyptic number.

52578999 is a deficient number, since it is larger than the sum of its proper divisors (30272913).

52578999 is a wasteful number, since it uses less digits than its factorization.

52578999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531118 (or 531115 counting only the distinct ones).

The product of its digits is 2041200, while the sum is 54.

The square root of 52578999 is about 7251.1377727912. The cubic root of 52578999 is about 374.6313390230.

It can be divided in two parts, 525 and 78999, that added together give a square (79524 = 282²).

The spelling of 52578999 in words is "fifty-two million, five hundred seventy-eight thousand, nine hundred ninety-nine".