51311034 has 24 divisors (see below), whose sum is σ = 115008660. Its totient is φ = 16513728.

The previous prime is 51311033. The next prime is 51311041. The reversal of 51311034 is 43011315.

It can be written as a sum of positive squares in 2 ways, for example, as 49070025 + 2241009 = 7005^2 + 1497^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 51310998 and 51311016.

It is not an unprimeable number, because it can be changed into a prime (51311033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48627 + ... + 49670.

Almost surely, 2^51311034 is an apocalyptic number.

51311034 is an abundant number, since it is smaller than the sum of its proper divisors (63697626).

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

51311034 is a wasteful number, since it uses less digits than its factorization.

51311034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98334 (or 98331 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 51311034 is about 7163.1720627108. The cubic root of 51311034 is about 371.5953369340.

Adding to 51311034 its reverse (43011315), we get a palindrome (94322349).

The spelling of 51311034 in words is "fifty-one million, three hundred eleven thousand, thirty-four".