65575501 has 2 divisors, whose sum is σ = 65575502. Its totient is φ = 65575500.

The previous prime is 65575493. The next prime is 65575519. The reversal of 65575501 is 10557556.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64818601 + 756900 = 8051^2 + 870^2 .

It is a cyclic number.

It is not a de Polignac number, because 65575501 - 2³ = 65575493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65575541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32787750 + 32787751.

It is an arithmetic number, because the mean of its divisors is an integer number (32787751).

Almost surely, 2^65575501 is an apocalyptic number.

It is an amenable number.

65575501 is a deficient number, since it is larger than the sum of its proper divisors (1).

65575501 is an equidigital number, since it uses as much as digits as its factorization.

65575501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26250, while the sum is 34.

The square root of 65575501 is about 8097.8701520832. The cubic root of 65575501 is about 403.2557225316.

The spelling of 65575501 in words is "sixty-five million, five hundred seventy-five thousand, five hundred one".