51038903 has 2 divisors, whose sum is σ = 51038904. Its totient is φ = 51038902.

The previous prime is 51038881. The next prime is 51038951. The reversal of 51038903 is 30983015.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51038903 - 2⁶ = 51038839 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51038983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25519451 + 25519452.

It is an arithmetic number, because the mean of its divisors is an integer number (25519452).

Almost surely, 2^51038903 is an apocalyptic number.

51038903 is a deficient number, since it is larger than the sum of its proper divisors (1).

51038903 is an equidigital number, since it uses as much as digits as its factorization.

51038903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 51038903 is about 7144.1516641236. The cubic root of 51038903 is about 370.9372464533.

The spelling of 51038903 in words is "fifty-one million, thirty-eight thousand, nine hundred three".