52090728 has 32 divisors (see below), whose sum is σ = 134719200. Its totient is φ = 16764608.

The previous prime is 52090697. The next prime is 52090729. The reversal of 52090728 is 82709025.

It is not an unprimeable number, because it can be changed into a prime (52090729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36726 + ... + 38117.

It is an arithmetic number, because the mean of its divisors is an integer number (4209975).

Almost surely, 2^52090728 is an apocalyptic number.

52090728 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

52090728 is an abundant number, since it is smaller than the sum of its proper divisors (82628472).

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

52090728 is a wasteful number, since it uses less digits than its factorization.

52090728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74881 (or 74877 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 52090728 is about 7217.3906642221. The cubic root of 52090728 is about 373.4680685737.

The spelling of 52090728 in words is "fifty-two million, ninety thousand, seven hundred twenty-eight".