51211304 has 8 divisors (see below), whose sum is σ = 96021210. Its totient is φ = 25605648.

The previous prime is 51211273. The next prime is 51211319. The reversal of 51211304 is 40311215.

It can be written as a sum of positive squares in only one way, i.e., 51122500 + 88804 = 7150^2 + 298^2 .

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

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3200699 + ... + 3200714.

Almost surely, 2^51211304 is an apocalyptic number.

It is an amenable number.

51211304 is a deficient number, since it is larger than the sum of its proper divisors (44809906).

51211304 is a wasteful number, since it uses less digits than its factorization.

51211304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6401419 (or 6401415 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 51211304 is about 7156.2073754189. The cubic root of 51211304 is about 371.3544320324.

Adding to 51211304 its reverse (40311215), we get a palindrome (91522519).

It can be divided in two parts, 51211 and 304, that added together give a palindrome (51515).

The spelling of 51211304 in words is "fifty-one million, two hundred eleven thousand, three hundred four".