51407669 has 2 divisors, whose sum is σ = 51407670. Its totient is φ = 51407668.

The previous prime is 51407663. The next prime is 51407753. The reversal of 51407669 is 96670415.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47748100 + 3659569 = 6910^2 + 1913^2 .

It is a cyclic number.

It is not a de Polignac number, because 51407669 - 2¹⁶ = 51342133 is a prime.

It is a super-2 number, since 2×51407669² = 5285496864027122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51407663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25703834 + 25703835.

It is an arithmetic number, because the mean of its divisors is an integer number (25703835).

Almost surely, 2^51407669 is an apocalyptic number.

It is an amenable number.

51407669 is a deficient number, since it is larger than the sum of its proper divisors (1).

51407669 is an equidigital number, since it uses as much as digits as its factorization.

51407669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 51407669 is about 7169.9141556925. The cubic root of 51407669 is about 371.8284680521.

The spelling of 51407669 in words is "fifty-one million, four hundred seven thousand, six hundred sixty-nine".