51466237 has 2 divisors, whose sum is σ = 51466238. Its totient is φ = 51466236.

The previous prime is 51466229. The next prime is 51466301. The reversal of 51466237 is 73266415.

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., 26275876 + 25190361 = 5126^2 + 5019^2 .

It is a cyclic number.

It is not a de Polignac number, because 51466237 - 2³ = 51466229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51466637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25733118 + 25733119.

It is an arithmetic number, because the mean of its divisors is an integer number (25733119).

Almost surely, 2^51466237 is an apocalyptic number.

It is an amenable number.

51466237 is a deficient number, since it is larger than the sum of its proper divisors (1).

51466237 is an equidigital number, since it uses as much as digits as its factorization.

51466237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 34.

The square root of 51466237 is about 7173.9972818506. The cubic root of 51466237 is about 371.9696206933.

The spelling of 51466237 in words is "fifty-one million, four hundred sixty-six thousand, two hundred thirty-seven".