64051249 has 2 divisors, whose sum is σ = 64051250. Its totient is φ = 64051248.

The previous prime is 64051153. The next prime is 64051279. The reversal of 64051249 is 94215046.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51940849 + 12110400 = 7207^2 + 3480^2 .

It is a cyclic number.

It is not a de Polignac number, because 64051249 - 2¹⁹ = 63526961 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64051249.

It is not a weakly prime, because it can be changed into another prime (64051279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32025624 + 32025625.

It is an arithmetic number, because the mean of its divisors is an integer number (32025625).

Almost surely, 2^64051249 is an apocalyptic number.

It is an amenable number.

64051249 is a deficient number, since it is larger than the sum of its proper divisors (1).

64051249 is an equidigital number, since it uses as much as digits as its factorization.

64051249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 64051249 is about 8003.2024215310. The cubic root of 64051249 is about 400.1067402638.

The spelling of 64051249 in words is "sixty-four million, fifty-one thousand, two hundred forty-nine".