51526451 has 2 divisors, whose sum is σ = 51526452. Its totient is φ = 51526450.

The previous prime is 51526369. The next prime is 51526457. The reversal of 51526451 is 15462515.

It is a happy number.

51526451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51526451 - 2¹⁰ = 51525427 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51526457) 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 as a sum of consecutive naturals, namely, 25763225 + 25763226.

It is an arithmetic number, because the mean of its divisors is an integer number (25763226).

Almost surely, 2^51526451 is an apocalyptic number.

51526451 is a deficient number, since it is larger than the sum of its proper divisors (1).

51526451 is an equidigital number, since it uses as much as digits as its factorization.

51526451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6000, while the sum is 29.

The square root of 51526451 is about 7178.1927391231. The cubic root of 51526451 is about 372.1146287012.

Adding to 51526451 its reverse (15462515), we get a palindrome (66988966).

The spelling of 51526451 in words is "fifty-one million, five hundred twenty-six thousand, four hundred fifty-one".