51240352 has 12 divisors (see below), whose sum is σ = 100879506. Its totient is φ = 25620160.

The previous prime is 51240349. The next prime is 51240373. The reversal of 51240352 is 25304215.

51240352 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 44036496 + 7203856 = 6636^2 + 2684^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 800599 + ... + 800662.

Almost surely, 2^51240352 is an apocalyptic number.

It is an amenable number.

51240352 is a deficient number, since it is larger than the sum of its proper divisors (49639154).

51240352 is a wasteful number, since it uses less digits than its factorization.

51240352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601271 (or 1601263 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 51240352 is about 7158.2366543724. The cubic root of 51240352 is about 371.4246317982.

Adding to 51240352 its reverse (25304215), we get a palindrome (76544567).

The spelling of 51240352 in words is "fifty-one million, two hundred forty thousand, three hundred fifty-two".