51013322 has 4 divisors (see below), whose sum is σ = 76519986. Its totient is φ = 25506660.

The previous prime is 51013301. The next prime is 51013357. The reversal of 51013322 is 22331015.

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., 30591961 + 20421361 = 5531^2 + 4519^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51013322.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12753329 + ... + 12753332.

Almost surely, 2^51013322 is an apocalyptic number.

51013322 is a deficient number, since it is larger than the sum of its proper divisors (25506664).

51013322 is a wasteful number, since it uses less digits than its factorization.

51013322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25506663.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 51013322 is about 7142.3610942041. The cubic root of 51013322 is about 370.8752641164.

Adding to 51013322 its reverse (22331015), we get a palindrome (73344337).

The spelling of 51013322 in words is "fifty-one million, thirteen thousand, three hundred twenty-two".