64994051 has 2 divisors, whose sum is σ = 64994052. Its totient is φ = 64994050.

The previous prime is 64994029. The next prime is 64994071. The reversal of 64994051 is 15049946.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64994051 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 64993996 and 64994014.

It is not a weakly prime, because it can be changed into another prime (64994071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32497025 + 32497026.

It is an arithmetic number, because the mean of its divisors is an integer number (32497026).

Almost surely, 2^64994051 is an apocalyptic number.

64994051 is a deficient number, since it is larger than the sum of its proper divisors (1).

64994051 is an equidigital number, since it uses as much as digits as its factorization.

64994051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 64994051 is about 8061.8887985385. Note that the first 3 decimals coincide. The cubic root of 64994051 is about 402.0603091782.

The spelling of 64994051 in words is "sixty-four million, nine hundred ninety-four thousand, fifty-one".