65541457 has 2 divisors, whose sum is σ = 65541458. Its totient is φ = 65541456.

The previous prime is 65541401. The next prime is 65541461. The reversal of 65541457 is 75414556.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56565441 + 8976016 = 7521^2 + 2996^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65541457 is a prime.

It is not a weakly prime, because it can be changed into another prime (65541257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32770728 + 32770729.

It is an arithmetic number, because the mean of its divisors is an integer number (32770729).

Almost surely, 2^65541457 is an apocalyptic number.

It is an amenable number.

65541457 is a deficient number, since it is larger than the sum of its proper divisors (1).

65541457 is an equidigital number, since it uses as much as digits as its factorization.

65541457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84000, while the sum is 37.

The square root of 65541457 is about 8095.7678449916. The cubic root of 65541457 is about 403.1859260678.

The spelling of 65541457 in words is "sixty-five million, five hundred forty-one thousand, four hundred fifty-seven".