51705152 has 28 divisors (see below), whose sum is σ = 103083360. Its totient is φ = 25731456.

The previous prime is 51705151. The next prime is 51705161. The reversal of 51705152 is 25150715.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51705151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12749 + ... + 16307.

Almost surely, 2^51705152 is an apocalyptic number.

It is an amenable number.

51705152 is a deficient number, since it is larger than the sum of its proper divisors (51378208).

51705152 is a wasteful number, since it uses less digits than its factorization.

51705152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3798 (or 3788 counting only the distinct ones).

The product of its (nonzero) digits is 1750, while the sum is 26.

The square root of 51705152 is about 7190.6294578430. The cubic root of 51705152 is about 372.5443143532.

Adding to 51705152 its reverse (25150715), we get a palindrome (76855867).

The spelling of 51705152 in words is "fifty-one million, seven hundred five thousand, one hundred fifty-two".