51480433 has 2 divisors, whose sum is σ = 51480434. Its totient is φ = 51480432.

The previous prime is 51480419. The next prime is 51480439. The reversal of 51480433 is 33408415.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51437584 + 42849 = 7172^2 + 207^2 .

It is a cyclic number.

It is not a de Polignac number, because 51480433 - 2²⁵ = 17926001 is a prime.

It is equal to p_3084508 and since 51480433 and 3084508 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (51480439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25740216 + 25740217.

It is an arithmetic number, because the mean of its divisors is an integer number (25740217).

Almost surely, 2^51480433 is an apocalyptic number.

It is an amenable number.

51480433 is a deficient number, since it is larger than the sum of its proper divisors (1).

51480433 is an equidigital number, since it uses as much as digits as its factorization.

51480433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 51480433 is about 7174.9866201966. The cubic root of 51480433 is about 372.0038178396.

Adding to 51480433 its reverse (33408415), we get a palindrome (84888848).

The spelling of 51480433 in words is "fifty-one million, four hundred eighty thousand, four hundred thirty-three".