52091528 has 16 divisors (see below), whose sum is σ = 98170380. Its totient is φ = 25912768.

The previous prime is 52091509. The next prime is 52091537. The reversal of 52091528 is 82519025.

It can be written as a sum of positive squares in 2 ways, for example, as 39715204 + 12376324 = 6302^2 + 3518^2 .

It is a junction number, because it is equal to n+sod(n) for n = 52091494 and 52091503.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14951 + ... + 18102.

Almost surely, 2^52091528 is an apocalyptic number.

It is an amenable number.

52091528 is a deficient number, since it is larger than the sum of its proper divisors (46078852).

52091528 is a wasteful number, since it uses less digits than its factorization.

52091528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33256 (or 33252 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 52091528 is about 7217.4460857010. The cubic root of 52091528 is about 373.4699804490.

The spelling of 52091528 in words is "fifty-two million, ninety-one thousand, five hundred twenty-eight".