51009037 has 2 divisors, whose sum is σ = 51009038. Its totient is φ = 51009036.

The previous prime is 51009031. The next prime is 51009041. The reversal of 51009037 is 73090015.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36614601 + 14394436 = 6051^2 + 3794^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51009037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51009031) 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, 25504518 + 25504519.

It is an arithmetic number, because the mean of its divisors is an integer number (25504519).

Almost surely, 2^51009037 is an apocalyptic number.

It is an amenable number.

51009037 is a deficient number, since it is larger than the sum of its proper divisors (1).

51009037 is an equidigital number, since it uses as much as digits as its factorization.

51009037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 945, while the sum is 25.

The square root of 51009037 is about 7142.0611170726. The cubic root of 51009037 is about 370.8648796067.

The spelling of 51009037 in words is "fifty-one million, nine thousand, thirty-seven".