65477133 has 16 divisors (see below), whose sum is σ = 97151040. Its totient is φ = 43584912.

The previous prime is 65477117. The next prime is 65477143. The reversal of 65477133 is 33177456.

It is not a de Polignac number, because 65477133 - 2⁴ = 65477117 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65477143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21610 + ... + 24452.

It is an arithmetic number, because the mean of its divisors is an integer number (6071940).

Almost surely, 2^65477133 is an apocalyptic number.

65477133 is the 5118-th heptagonal number.

It is an amenable number.

65477133 is a deficient number, since it is larger than the sum of its proper divisors (31673907).

65477133 is a wasteful number, since it uses less digits than its factorization.

65477133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3705 (or 3699 counting only the distinct ones).

The product of its digits is 52920, while the sum is 36.

The square root of 65477133 is about 8091.7941768189. The cubic root of 65477133 is about 403.0539840290.

The spelling of 65477133 in words is "sixty-five million, four hundred seventy-seven thousand, one hundred thirty-three".