51061429 has 2 divisors, whose sum is σ = 51061430. Its totient is φ = 51061428.

The previous prime is 51061391. The next prime is 51061457. The reversal of 51061429 is 92416015.

It is an a-pointer prime, because the next prime (51061457) can be obtained adding 51061429 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51051025 + 10404 = 7145^2 + 102^2 .

It is a cyclic number.

It is not a de Polignac number, because 51061429 - 2¹³ = 51053237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51061397 and 51061406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51061499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25530714 + 25530715.

It is an arithmetic number, because the mean of its divisors is an integer number (25530715).

Almost surely, 2^51061429 is an apocalyptic number.

It is an amenable number.

51061429 is a deficient number, since it is larger than the sum of its proper divisors (1).

51061429 is an equidigital number, since it uses as much as digits as its factorization.

51061429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 51061429 is about 7145.7280244913. The cubic root of 51061429 is about 370.9918094302.

The spelling of 51061429 in words is "fifty-one million, sixty-one thousand, four hundred twenty-nine".