51523337 has 2 divisors, whose sum is σ = 51523338. Its totient is φ = 51523336.

The previous prime is 51523313. The next prime is 51523349. The reversal of 51523337 is 73332515.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47045881 + 4477456 = 6859^2 + 2116^2 .

It is a cyclic number.

It is not a de Polignac number, because 51523337 - 2⁶ = 51523273 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51523357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25761668 + 25761669.

It is an arithmetic number, because the mean of its divisors is an integer number (25761669).

Almost surely, 2^51523337 is an apocalyptic number.

It is an amenable number.

51523337 is a deficient number, since it is larger than the sum of its proper divisors (1).

51523337 is an equidigital number, since it uses as much as digits as its factorization.

51523337 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9450, while the sum is 29.

The square root of 51523337 is about 7177.9758288810. The cubic root of 51523337 is about 372.1071323035.

The spelling of 51523337 in words is "fifty-one million, five hundred twenty-three thousand, three hundred thirty-seven".