65477875 has 16 divisors (see below), whose sum is σ = 82162080. Its totient is φ = 52096800.

The previous prime is 65477873. The next prime is 65477887. The reversal of 65477875 is 57877456.

It is a happy number.

It is not a de Polignac number, because 65477875 - 2¹ = 65477873 is a prime.

It is a super-2 number, since 2×65477875² = 8574704229031250, which contains 22 as substring.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (65477873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23296 + ... + 25954.

It is an arithmetic number, because the mean of its divisors is an integer number (5135130).

Almost surely, 2^65477875 is an apocalyptic number.

65477875 is a deficient number, since it is larger than the sum of its proper divisors (16684205).

65477875 is a wasteful number, since it uses less digits than its factorization.

65477875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2871 (or 2861 counting only the distinct ones).

The product of its digits is 1646400, while the sum is 49.

The square root of 65477875 is about 8091.8400256060. The cubic root of 65477875 is about 403.0555065194.

The spelling of 65477875 in words is "sixty-five million, four hundred seventy-seven thousand, eight hundred seventy-five".