51525331 has 8 divisors (see below), whose sum is σ = 60533424. Its totient is φ = 43237920.

The previous prime is 51525319. The next prime is 51525377. The reversal of 51525331 is 13352515.

51525331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 51525331 - 2⁷ = 51525203 is a prime.

It is a super-2 number, since 2×51525331² = 5309719469319122, 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 = 51525296 and 51525305.

It is not an unprimeable number, because it can be changed into a prime (51525311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180016 + ... + 180301.

It is an arithmetic number, because the mean of its divisors is an integer number (7566678).

Almost surely, 2^51525331 is an apocalyptic number.

51525331 is a deficient number, since it is larger than the sum of its proper divisors (9008093).

51525331 is a wasteful number, since it uses less digits than its factorization.

51525331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360341.

The product of its digits is 2250, while the sum is 25.

The square root of 51525331 is about 7178.1147246335. The cubic root of 51525331 is about 372.1119325364. Note that the first 3 decimals are identical.

Adding to 51525331 its reverse (13352515), we get a palindrome (64877846).

The spelling of 51525331 in words is "fifty-one million, five hundred twenty-five thousand, three hundred thirty-one".