51527251 has 8 divisors (see below), whose sum is σ = 51998544. Its totient is φ = 51058560.

The previous prime is 51527233. The next prime is 51527257. The reversal of 51527251 is 15272515.

51527251 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 a cyclic number.

It is not a de Polignac number, because 51527251 - 2¹¹ = 51525203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51527257) 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, 65080 + ... + 65866.

It is an arithmetic number, because the mean of its divisors is an integer number (6499818).

Almost surely, 2^51527251 is an apocalyptic number.

51527251 is a deficient number, since it is larger than the sum of its proper divisors (471293).

51527251 is a wasteful number, since it uses less digits than its factorization.

51527251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301.

The product of its digits is 3500, while the sum is 28.

The square root of 51527251 is about 7178.2484632395. The cubic root of 51527251 is about 372.1165545092.

Adding to 51527251 its reverse (15272515), we get a palindrome (66799766).

It can be divided in two parts, 5152 and 7251, that added together give a triangular number (12403 = T₁₅₇).

The spelling of 51527251 in words is "fifty-one million, five hundred twenty-seven thousand, two hundred fifty-one".