51446152 has 8 divisors (see below), whose sum is σ = 96461550. Its totient is φ = 25723072.

The previous prime is 51446149. The next prime is 51446159. The reversal of 51446152 is 25164415.

It can be written as a sum of positive squares in only one way, i.e., 32558436 + 18887716 = 5706^2 + 4346^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 51446152.

It is not an unprimeable number, because it can be changed into a prime (51446159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3215377 + ... + 3215392.

Almost surely, 2^51446152 is an apocalyptic number.

It is an amenable number.

51446152 is a deficient number, since it is larger than the sum of its proper divisors (45015398).

51446152 is a wasteful number, since it uses less digits than its factorization.

51446152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6430775 (or 6430771 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 51446152 is about 7172.5972980504. The cubic root of 51446152 is about 371.9212266241.

The spelling of 51446152 in words is "fifty-one million, four hundred forty-six thousand, one hundred fifty-two".