53512428 has 12 divisors (see below), whose sum is σ = 124862360. Its totient is φ = 17837472.

The previous prime is 53512423. The next prime is 53512441. The reversal of 53512428 is 82421535.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 53512395 and 53512404.

It is not an unprimeable number, because it can be changed into a prime (53512423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2229673 + ... + 2229696.

Almost surely, 2^53512428 is an apocalyptic number.

It is an amenable number.

53512428 is an abundant number, since it is smaller than the sum of its proper divisors (71349932).

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

53512428 is a wasteful number, since it uses less digits than its factorization.

53512428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4459376 (or 4459374 counting only the distinct ones).

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

The square root of 53512428 is about 7315.2189304217. The cubic root of 53512428 is about 376.8352771458.

The spelling of 53512428 in words is "fifty-three million, five hundred twelve thousand, four hundred twenty-eight".