51905201 has 2 divisors, whose sum is σ = 51905202. Its totient is φ = 51905200.

The previous prime is 51905153. The next prime is 51905209. The reversal of 51905201 is 10250915.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30514576 + 21390625 = 5524^2 + 4625^2 .

It is a cyclic number.

It is not a de Polignac number, because 51905201 - 2⁶ = 51905137 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51905209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25952600 + 25952601.

It is an arithmetic number, because the mean of its divisors is an integer number (25952601).

Almost surely, 2^51905201 is an apocalyptic number.

It is an amenable number.

51905201 is a deficient number, since it is larger than the sum of its proper divisors (1).

51905201 is an equidigital number, since it uses as much as digits as its factorization.

51905201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 450, while the sum is 23.

The square root of 51905201 is about 7204.5264244085. The cubic root of 51905201 is about 373.0241582678.

The spelling of 51905201 in words is "fifty-one million, nine hundred five thousand, two hundred one".