51964571 has 2 divisors, whose sum is σ = 51964572. Its totient is φ = 51964570.

The previous prime is 51964559. The next prime is 51964603. The reversal of 51964571 is 17546915.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51964571 - 2¹⁰ = 51963547 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51964531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25982285 + 25982286.

It is an arithmetic number, because the mean of its divisors is an integer number (25982286).

Almost surely, 2^51964571 is an apocalyptic number.

51964571 is a deficient number, since it is larger than the sum of its proper divisors (1).

51964571 is an equidigital number, since it uses as much as digits as its factorization.

51964571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37800, while the sum is 38.

The square root of 51964571 is about 7208.6455731989. The cubic root of 51964571 is about 373.1663277446.

The spelling of 51964571 in words is "fifty-one million, nine hundred sixty-four thousand, five hundred seventy-one".