51344653 has 2 divisors, whose sum is σ = 51344654. Its totient is φ = 51344652.

The previous prime is 51344639. The next prime is 51344659. The reversal of 51344653 is 35644315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30669444 + 20675209 = 5538^2 + 4547^2 .

It is a cyclic number.

It is not a de Polignac number, because 51344653 - 2⁵ = 51344621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51344659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25672326 + 25672327.

It is an arithmetic number, because the mean of its divisors is an integer number (25672327).

Almost surely, 2^51344653 is an apocalyptic number.

It is an amenable number.

51344653 is a deficient number, since it is larger than the sum of its proper divisors (1).

51344653 is an equidigital number, since it uses as much as digits as its factorization.

51344653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 31.

The square root of 51344653 is about 7165.5183343566. The cubic root of 51344653 is about 371.6764756628.

Adding to 51344653 its reverse (35644315), we get a palindrome (86988968).

The spelling of 51344653 in words is "fifty-one million, three hundred forty-four thousand, six hundred fifty-three".