65057497 has 2 divisors, whose sum is σ = 65057498. Its totient is φ = 65057496.

The previous prime is 65057491. The next prime is 65057533. The reversal of 65057497 is 79475056.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63936016 + 1121481 = 7996^2 + 1059^2 .

It is a cyclic number.

It is not a de Polignac number, because 65057497 - 2²³ = 56668889 is a prime.

It is not a weakly prime, because it can be changed into another prime (65057491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32528748 + 32528749.

It is an arithmetic number, because the mean of its divisors is an integer number (32528749).

Almost surely, 2^65057497 is an apocalyptic number.

It is an amenable number.

65057497 is a deficient number, since it is larger than the sum of its proper divisors (1).

65057497 is an equidigital number, since it uses as much as digits as its factorization.

65057497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 264600, while the sum is 43.

The square root of 65057497 is about 8065.8227726624. The cubic root of 65057497 is about 402.1910945961.

The spelling of 65057497 in words is "sixty-five million, fifty-seven thousand, four hundred ninety-seven".