51023351 has 2 divisors, whose sum is σ = 51023352. Its totient is φ = 51023350.

The previous prime is 51023347. The next prime is 51023359. The reversal of 51023351 is 15332015.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51023351 - 2² = 51023347 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 (51023359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25511675 + 25511676.

It is an arithmetic number, because the mean of its divisors is an integer number (25511676).

Almost surely, 2^51023351 is an apocalyptic number.

51023351 is a deficient number, since it is larger than the sum of its proper divisors (1).

51023351 is an equidigital number, since it uses as much as digits as its factorization.

51023351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 51023351 is about 7143.0631384582. The cubic root of 51023351 is about 370.8995666852.

Adding to 51023351 its reverse (15332015), we get a palindrome (66355366).

The spelling of 51023351 in words is "fifty-one million, twenty-three thousand, three hundred fifty-one".