52539894 has 128 divisors (see below), whose sum is σ = 139138560. Its totient is φ = 14636160.

The previous prime is 52539871. The next prime is 52539899. The reversal of 52539894 is 49893525.

52539894 is a `hidden beast` number, since 525 + 39 + 8 + 94 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52539899) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1221837 + ... + 1221879.

It is an arithmetic number, because the mean of its divisors is an integer number (1087020).

Almost surely, 2^52539894 is an apocalyptic number.

52539894 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 52539894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69569280).

52539894 is an abundant number, since it is smaller than the sum of its proper divisors (86598666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52539894 is a wasteful number, since it uses less digits than its factorization.

52539894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104 (or 76 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 52539894 is about 7248.4407978544. The cubic root of 52539894 is about 374.5384401330.

The spelling of 52539894 in words is "fifty-two million, five hundred thirty-nine thousand, eight hundred ninety-four".