51174407 has 2 divisors, whose sum is σ = 51174408. Its totient is φ = 51174406.

The previous prime is 51174341. The next prime is 51174419. The reversal of 51174407 is 70447115.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51174407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51174407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51174427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25587203 + 25587204.

It is an arithmetic number, because the mean of its divisors is an integer number (25587204).

Almost surely, 2^51174407 is an apocalyptic number.

51174407 is a deficient number, since it is larger than the sum of its proper divisors (1).

51174407 is an equidigital number, since it uses as much as digits as its factorization.

51174407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 51174407 is about 7153.6289392168. The cubic root of 51174407 is about 371.2652254485.

The spelling of 51174407 in words is "fifty-one million, one hundred seventy-four thousand, four hundred seven".