51141551 has 2 divisors, whose sum is σ = 51141552. Its totient is φ = 51141550.

The previous prime is 51141533. The next prime is 51141557. The reversal of 51141551 is 15514115.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51141551 - 2⁶ = 51141487 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51141557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25570775 + 25570776.

It is an arithmetic number, because the mean of its divisors is an integer number (25570776).

Almost surely, 2^51141551 is an apocalyptic number.

51141551 is a deficient number, since it is larger than the sum of its proper divisors (1).

51141551 is an equidigital number, since it uses as much as digits as its factorization.

51141551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 500, while the sum is 23.

The square root of 51141551 is about 7151.3321136695. The cubic root of 51141551 is about 371.1857527688.

Adding to 51141551 its reverse (15514115), we get a palindrome (66655666).

The spelling of 51141551 in words is "fifty-one million, one hundred forty-one thousand, five hundred fifty-one".