51311202 has 32 divisors (see below), whose sum is σ = 108972864. Its totient is φ = 16051200.

The previous prime is 51311171. The next prime is 51311207. The reversal of 51311202 is 20211315.

51311202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51311207) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 57802 + ... + 58682.

It is an arithmetic number, because the mean of its divisors is an integer number (3405402).

Almost surely, 2^51311202 is an apocalyptic number.

51311202 is an abundant number, since it is smaller than the sum of its proper divisors (57661662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51311202 is a wasteful number, since it uses less digits than its factorization.

51311202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 51311202 is about 7163.1837893495. The cubic root of 51311202 is about 371.5957424864.

Adding to 51311202 its reverse (20211315), we get a palindrome (71522517).

The spelling of 51311202 in words is "fifty-one million, three hundred eleven thousand, two hundred two".