51366552 has 16 divisors (see below), whose sum is σ = 128416440. Its totient is φ = 17122176.

The previous prime is 51366529. The next prime is 51366559. The reversal of 51366552 is 25566315.

51366552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51366559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1070113 + ... + 1070160.

Almost surely, 2^51366552 is an apocalyptic number.

It is an amenable number.

51366552 is an abundant number, since it is smaller than the sum of its proper divisors (77049888).

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

51366552 is a wasteful number, since it uses less digits than its factorization.

51366552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2140282 (or 2140278 counting only the distinct ones).

The product of its digits is 27000, while the sum is 33.

The square root of 51366552 is about 7167.0462535134. The cubic root of 51366552 is about 371.7293093775.

The spelling of 51366552 in words is "fifty-one million, three hundred sixty-six thousand, five hundred fifty-two".