53387228 has 24 divisors (see below), whose sum is σ = 94668000. Its totient is φ = 26342208.

The previous prime is 53387221. The next prime is 53387233. The reversal of 53387228 is 82278335.

It is a super-2 number, since 2×53387228² = 5700392227047968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53387191 and 53387200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53387221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152798 + ... + 153146.

It is an arithmetic number, because the mean of its divisors is an integer number (3944500).

Almost surely, 2^53387228 is an apocalyptic number.

It is an amenable number.

53387228 is a deficient number, since it is larger than the sum of its proper divisors (41280772).

53387228 is a wasteful number, since it uses less digits than its factorization.

53387228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749 (or 747 counting only the distinct ones).

The product of its digits is 80640, while the sum is 38.

The square root of 53387228 is about 7306.6564172678. The cubic root of 53387228 is about 376.5411609253.

The spelling of 53387228 in words is "fifty-three million, three hundred eighty-seven thousand, two hundred twenty-eight".