51051523 has 2 divisors, whose sum is σ = 51051524. Its totient is φ = 51051522.

The previous prime is 51051509. The next prime is 51051547. The reversal of 51051523 is 32515015.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51051523 - 2²¹ = 48954371 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51051494 and 51051503.

It is not a weakly prime, because it can be changed into another prime (51051563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25525761 + 25525762.

It is an arithmetic number, because the mean of its divisors is an integer number (25525762).

Almost surely, 2^51051523 is an apocalyptic number.

51051523 is a deficient number, since it is larger than the sum of its proper divisors (1).

51051523 is an equidigital number, since it uses as much as digits as its factorization.

51051523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 51051523 is about 7145.0348494601. The cubic root of 51051523 is about 370.9678168744.

Adding to 51051523 its reverse (32515015), we get a palindrome (83566538).

The spelling of 51051523 in words is "fifty-one million, fifty-one thousand, five hundred twenty-three".