52135428 has 48 divisors (see below), whose sum is σ = 126282240. Its totient is φ = 16723200.

The previous prime is 52135427. The next prime is 52135441. The reversal of 52135428 is 82453125.

It is a junction number, because it is equal to n+sod(n) for n = 52135395 and 52135404.

It is not an unprimeable number, because it can be changed into a prime (52135423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99808 + ... + 100328.

It is an arithmetic number, because the mean of its divisors is an integer number (2630880).

Almost surely, 2^52135428 is an apocalyptic number.

It is an amenable number.

52135428 is an abundant number, since it is smaller than the sum of its proper divisors (74146812).

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

52135428 is a wasteful number, since it uses less digits than its factorization.

52135428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828 (or 826 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 52135428 is about 7220.4866871978. The cubic root of 52135428 is about 373.5748646097.

The spelling of 52135428 in words is "fifty-two million, one hundred thirty-five thousand, four hundred twenty-eight".