51380701 has 2 divisors, whose sum is σ = 51380702. Its totient is φ = 51380700.

The previous prime is 51380677. The next prime is 51380717. The reversal of 51380701 is 10708315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49716601 + 1664100 = 7051^2 + 1290^2 .

It is a cyclic number.

It is not a de Polignac number, because 51380701 - 2¹⁹ = 50856413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51386701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25690350 + 25690351.

It is an arithmetic number, because the mean of its divisors is an integer number (25690351).

Almost surely, 2^51380701 is an apocalyptic number.

It is an amenable number.

51380701 is a deficient number, since it is larger than the sum of its proper divisors (1).

51380701 is an equidigital number, since it uses as much as digits as its factorization.

51380701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 51380701 is about 7168.0332728022. The cubic root of 51380701 is about 371.7634373911.

The spelling of 51380701 in words is "fifty-one million, three hundred eighty thousand, seven hundred one".