51996001 has 2 divisors, whose sum is σ = 51996002. Its totient is φ = 51996000.

The previous prime is 51995981. The next prime is 51996011. The reversal of 51996001 is 10069915.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45360225 + 6635776 = 6735^2 + 2576^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51996001 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51996011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25998000 + 25998001.

It is an arithmetic number, because the mean of its divisors is an integer number (25998001).

Almost surely, 2^51996001 is an apocalyptic number.

It is an amenable number.

51996001 is a deficient number, since it is larger than the sum of its proper divisors (1).

51996001 is an equidigital number, since it uses as much as digits as its factorization.

51996001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2430, while the sum is 31.

The square root of 51996001 is about 7210.8252648362. The cubic root of 51996001 is about 373.2415472876.

The spelling of 51996001 in words is "fifty-one million, nine hundred ninety-six thousand, one".