52276428 has 60 divisors (see below), whose sum is σ = 144715032. Its totient is φ = 16398720.

The previous prime is 52276423. The next prime is 52276439. The reversal of 52276428 is 82467225.

52276428 is a `hidden beast` number, since 5 + 2 + 2 + 7 + 642 + 8 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 52276392 and 52276401.

It is not an unprimeable number, because it can be changed into a prime (52276423) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 763 + ... + 10253.

Almost surely, 2^52276428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52276428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72357516).

52276428 is an abundant number, since it is smaller than the sum of its proper divisors (92438604).

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

52276428 is a wasteful number, since it uses less digits than its factorization.

52276428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9524 (or 9513 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 52276428 is about 7230.2439792859. The cubic root of 52276428 is about 373.9113385685.

The spelling of 52276428 in words is "fifty-two million, two hundred seventy-six thousand, four hundred twenty-eight".