51174901 has 2 divisors, whose sum is σ = 51174902. Its totient is φ = 51174900.

The previous prime is 51174853. The next prime is 51174941. The reversal of 51174901 is 10947115.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49014001 + 2160900 = 7001^2 + 1470^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51174901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51174901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51174941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25587450 + 25587451.

It is an arithmetic number, because the mean of its divisors is an integer number (25587451).

Almost surely, 2^51174901 is an apocalyptic number.

It is an amenable number.

51174901 is a deficient number, since it is larger than the sum of its proper divisors (1).

51174901 is an equidigital number, since it uses as much as digits as its factorization.

51174901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 51174901 is about 7153.6634670636. The cubic root of 51174901 is about 371.2664200849.

The spelling of 51174901 in words is "fifty-one million, one hundred seventy-four thousand, nine hundred one".