51653201 has 2 divisors, whose sum is σ = 51653202. Its totient is φ = 51653200.

The previous prime is 51653177. The next prime is 51653207. The reversal of 51653201 is 10235615.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51051025 + 602176 = 7145^2 + 776^2 .

It is a cyclic number.

It is not a de Polignac number, because 51653201 - 2⁶ = 51653137 is a prime.

It is not a weakly prime, because it can be changed into another prime (51653207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25826600 + 25826601.

It is an arithmetic number, because the mean of its divisors is an integer number (25826601).

Almost surely, 2^51653201 is an apocalyptic number.

It is an amenable number.

51653201 is a deficient number, since it is larger than the sum of its proper divisors (1).

51653201 is an equidigital number, since it uses as much as digits as its factorization.

51653201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 51653201 is about 7187.0161402351. The cubic root of 51653201 is about 372.4195006446.

Adding to 51653201 its reverse (10235615), we get a palindrome (61888816).

The spelling of 51653201 in words is "fifty-one million, six hundred fifty-three thousand, two hundred one".