51134521 has 8 divisors (see below), whose sum is σ = 54302184. Its totient is φ = 47984640.

The previous prime is 51134483. The next prime is 51134527. The reversal of 51134521 is 12543115.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11128896 + 40005625 = 3336^2 + 6325^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51134521 - 2¹³ = 51126329 is a prime.

It is a super-2 number, since 2×51134521² = 5229478475798882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51134492 and 51134501.

It is not an unprimeable number, because it can be changed into a prime (51134527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1741 + ... + 10261.

It is an arithmetic number, because the mean of its divisors is an integer number (6787773).

Almost surely, 2^51134521 is an apocalyptic number.

It is an amenable number.

51134521 is a deficient number, since it is larger than the sum of its proper divisors (3167663).

51134521 is a wasteful number, since it uses less digits than its factorization.

51134521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8891.

The product of its digits is 600, while the sum is 22.

The square root of 51134521 is about 7150.8405799598. The cubic root of 51134521 is about 371.1687440589.

Adding to 51134521 its reverse (12543115), we get a palindrome (63677636).

The spelling of 51134521 in words is "fifty-one million, one hundred thirty-four thousand, five hundred twenty-one".