51455011 has 2 divisors, whose sum is σ = 51455012. Its totient is φ = 51455010.

The previous prime is 51454987. The next prime is 51455029. The reversal of 51455011 is 11055415.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51455011 - 2²³ = 43066403 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51455081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25727505 + 25727506.

It is an arithmetic number, because the mean of its divisors is an integer number (25727506).

Almost surely, 2^51455011 is an apocalyptic number.

51455011 is a deficient number, since it is larger than the sum of its proper divisors (1).

51455011 is an equidigital number, since it uses as much as digits as its factorization.

51455011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 51455011 is about 7173.2148301860. The cubic root of 51455011 is about 371.9425736112.

The spelling of 51455011 in words is "fifty-one million, four hundred fifty-five thousand, eleven".