51120544 has 24 divisors (see below), whose sum is σ = 101646468. Its totient is φ = 25305600.

The previous prime is 51120539. The next prime is 51120551. The reversal of 51120544 is 44502115.

It can be written as a sum of positive squares in 2 ways, for example, as 38588944 + 12531600 = 6212^2 + 3540^2 .

It is a super-2 number, since 2×51120544² = 5226620037711872, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4677 + ... + 11140.

Almost surely, 2^51120544 is an apocalyptic number.

It is an amenable number.

51120544 is a deficient number, since it is larger than the sum of its proper divisors (50525924).

51120544 is a wasteful number, since it uses less digits than its factorization.

51120544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15928 (or 15920 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 51120544 is about 7149.8632154748. The cubic root of 51120544 is about 371.1349228217.

Adding to 51120544 its reverse (44502115), we get a palindrome (95622659).

The spelling of 51120544 in words is "fifty-one million, one hundred twenty thousand, five hundred forty-four".