51155063 has 2 divisors, whose sum is σ = 51155064. Its totient is φ = 51155062.

The previous prime is 51155047. The next prime is 51155077. The reversal of 51155063 is 36055115.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51155063 - 2⁴ = 51155047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51155033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25577531 + 25577532.

It is an arithmetic number, because the mean of its divisors is an integer number (25577532).

Almost surely, 2^51155063 is an apocalyptic number.

51155063 is a deficient number, since it is larger than the sum of its proper divisors (1).

51155063 is an equidigital number, since it uses as much as digits as its factorization.

51155063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 51155063 is about 7152.2767703718. The cubic root of 51155063 is about 371.2184399553.

The spelling of 51155063 in words is "fifty-one million, one hundred fifty-five thousand, sixty-three".