51514513 has 2 divisors, whose sum is σ = 51514514. Its totient is φ = 51514512.

The previous prime is 51514511. The next prime is 51514537. The reversal of 51514513 is 31541515.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51509329 + 5184 = 7177^2 + 72^2 .

It is a cyclic number.

It is not a de Polignac number, because 51514513 - 2¹ = 51514511 is a prime.

Together with 51514511, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (51514511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25757256 + 25757257.

It is an arithmetic number, because the mean of its divisors is an integer number (25757257).

Almost surely, 2^51514513 is an apocalyptic number.

It is an amenable number.

51514513 is a deficient number, since it is larger than the sum of its proper divisors (1).

51514513 is an equidigital number, since it uses as much as digits as its factorization.

51514513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1500, while the sum is 25.

The square root of 51514513 is about 7177.3611445990. The cubic root of 51514513 is about 372.0858884621.

The spelling of 51514513 in words is "fifty-one million, five hundred fourteen thousand, five hundred thirteen".