51312074 has 32 divisors (see below), whose sum is σ = 86788800. Its totient is φ = 22550400.

The previous prime is 51312071. The next prime is 51312091. The reversal of 51312074 is 47021315.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (51312071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146852 + ... + 147200.

It is an arithmetic number, because the mean of its divisors is an integer number (2712150).

Almost surely, 2^51312074 is an apocalyptic number.

51312074 is a deficient number, since it is larger than the sum of its proper divisors (35476726).

51312074 is a wasteful number, since it uses less digits than its factorization.

51312074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 51312074 is about 7163.2446558805. The cubic root of 51312074 is about 371.5978474826.

Adding to 51312074 its reverse (47021315), we get a palindrome (98333389).

The spelling of 51312074 in words is "fifty-one million, three hundred twelve thousand, seventy-four".