51331234 has 4 divisors (see below), whose sum is σ = 76996854. Its totient is φ = 25665616.

The previous prime is 51331229. The next prime is 51331243. The reversal of 51331234 is 43213315.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 44555625 + 6775609 = 6675^2 + 2603^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12832807 + ... + 12832810.

Almost surely, 2^51331234 is an apocalyptic number.

51331234 is a deficient number, since it is larger than the sum of its proper divisors (25665620).

51331234 is a wasteful number, since it uses less digits than its factorization.

51331234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25665619.

The product of its digits is 1080, while the sum is 22.

The square root of 51331234 is about 7164.5819138314. The cubic root of 51331234 is about 371.6440934452.

Adding to 51331234 its reverse (43213315), we get a palindrome (94544549).

The spelling of 51331234 in words is "fifty-one million, three hundred thirty-one thousand, two hundred thirty-four".