51043522 has 4 divisors (see below), whose sum is σ = 76565286. Its totient is φ = 25521760.

The previous prime is 51043513. The next prime is 51043561. The reversal of 51043522 is 22534015.

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., 43309561 + 7733961 = 6581^2 + 2781^2 .

It is a super-2 number, since 2×51043522² = 5210882276328968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51043493 and 51043502.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12760879 + ... + 12760882.

Almost surely, 2^51043522 is an apocalyptic number.

51043522 is a deficient number, since it is larger than the sum of its proper divisors (25521764).

51043522 is a wasteful number, since it uses less digits than its factorization.

51043522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25521763.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 51043522 is about 7144.4749282225. The cubic root of 51043522 is about 370.9484360058.

Adding to 51043522 its reverse (22534015), we get a palindrome (73577537).

The spelling of 51043522 in words is "fifty-one million, forty-three thousand, five hundred twenty-two".