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65513057 is a prime number
BaseRepresentation
bin1111100111101…
…0011001100001
311120021102000112
43321322121201
5113232404212
610300101105
71423565111
oct371723141
9146242015
1065513057
1133a86a25
1219b34795
131075a42c
1489b5041
155b41422
hex3e7a661

65513057 has 2 divisors, whose sum is σ = 65513058. Its totient is φ = 65513056.

The previous prime is 65513029. The next prime is 65513081. The reversal of 65513057 is 75031556.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43573201 + 21939856 = 6601^2 + 4684^2 .

It is a cyclic number.

It is not a de Polignac number, because 65513057 - 222 = 61318753 is a prime.

It is not a weakly prime, because it can be changed into another prime (65513027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32756528 + 32756529.

It is an arithmetic number, because the mean of its divisors is an integer number (32756529).

Almost surely, 265513057 is an apocalyptic number.

It is an amenable number.

65513057 is a deficient number, since it is larger than the sum of its proper divisors (1).

65513057 is an equidigital number, since it uses as much as digits as its factorization.

65513057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15750, while the sum is 32.

The square root of 65513057 is about 8094.0136520765. The cubic root of 65513057 is about 403.1276823490.

The spelling of 65513057 in words is "sixty-five million, five hundred thirteen thousand, fifty-seven".