51236701 has 2 divisors, whose sum is σ = 51236702. Its totient is φ = 51236700.

The previous prime is 51236687. The next prime is 51236747. The reversal of 51236701 is 10763215.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28100601 + 23136100 = 5301^2 + 4810^2 .

It is a cyclic number.

It is not a de Polignac number, because 51236701 - 2²³ = 42848093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51236771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25618350 + 25618351.

It is an arithmetic number, because the mean of its divisors is an integer number (25618351).

Almost surely, 2^51236701 is an apocalyptic number.

It is an amenable number.

51236701 is a deficient number, since it is larger than the sum of its proper divisors (1).

51236701 is an equidigital number, since it uses as much as digits as its factorization.

51236701 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 25.

The square root of 51236701 is about 7157.9816289231. The cubic root of 51236701 is about 371.4158099518.

Adding to 51236701 its reverse (10763215), we get a palindrome (61999916).

The spelling of 51236701 in words is "fifty-one million, two hundred thirty-six thousand, seven hundred one".