65577001 has 4 divisors (see below), whose sum is σ = 74945152. Its totient is φ = 56208852.

The previous prime is 65576993. The next prime is 65577011. The reversal of 65577001 is 10077556.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 65577001 - 2³ = 65576993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65577011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4684065 + ... + 4684078.

It is an arithmetic number, because the mean of its divisors is an integer number (18736288).

Almost surely, 2^65577001 is an apocalyptic number.

It is an amenable number.

65577001 is a deficient number, since it is larger than the sum of its proper divisors (9368151).

65577001 is an equidigital number, since it uses as much as digits as its factorization.

65577001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9368150.

The product of its (nonzero) digits is 7350, while the sum is 31.

The square root of 65577001 is about 8097.9627684992. The cubic root of 65577001 is about 403.2587972519.

The spelling of 65577001 in words is "sixty-five million, five hundred seventy-seven thousand, one".