51911029 has 2 divisors, whose sum is σ = 51911030. Its totient is φ = 51911028.

The previous prime is 51911003. The next prime is 51911051. The reversal of 51911029 is 92011915.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27060804 + 24850225 = 5202^2 + 4985^2 .

It is a cyclic number.

It is not a de Polignac number, because 51911029 - 2¹¹ = 51908981 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 51910988 and 51911006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51911089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25955514 + 25955515.

It is an arithmetic number, because the mean of its divisors is an integer number (25955515).

Almost surely, 2^51911029 is an apocalyptic number.

It is an amenable number.

51911029 is a deficient number, since it is larger than the sum of its proper divisors (1).

51911029 is an equidigital number, since it uses as much as digits as its factorization.

51911029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810, while the sum is 28.

The square root of 51911029 is about 7204.9308810009. The cubic root of 51911029 is about 373.0381189974.

The spelling of 51911029 in words is "fifty-one million, nine hundred eleven thousand, twenty-nine".