51474277 has 2 divisors, whose sum is σ = 51474278. Its totient is φ = 51474276.

The previous prime is 51474263. The next prime is 51474281. The reversal of 51474277 is 77247415.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39955041 + 11519236 = 6321^2 + 3394^2 .

It is a cyclic number.

It is not a de Polignac number, because 51474277 - 2⁷ = 51474149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51474257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25737138 + 25737139.

It is an arithmetic number, because the mean of its divisors is an integer number (25737139).

Almost surely, 2^51474277 is an apocalyptic number.

It is an amenable number.

51474277 is a deficient number, since it is larger than the sum of its proper divisors (1).

51474277 is an equidigital number, since it uses as much as digits as its factorization.

51474277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54880, while the sum is 37.

The square root of 51474277 is about 7174.5576170242. The cubic root of 51474277 is about 371.9889892490.

The spelling of 51474277 in words is "fifty-one million, four hundred seventy-four thousand, two hundred seventy-seven".