65506077 has 40 divisors (see below), whose sum is σ = 120450176. Its totient is φ = 34548768.

The previous prime is 65506061. The next prime is 65506081. The reversal of 65506077 is 77060556.

It is not a de Polignac number, because 65506077 - 2⁴ = 65506061 is a prime.

It is a super-2 number, since 2×65506077² = 8582092247859858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65506037) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2928 + ... + 11814.

Almost surely, 2^65506077 is an apocalyptic number.

It is an amenable number.

65506077 is a deficient number, since it is larger than the sum of its proper divisors (54944099).

65506077 is a wasteful number, since it uses less digits than its factorization.

65506077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8919 (or 8910 counting only the distinct ones).

The product of its (nonzero) digits is 44100, while the sum is 36.

The square root of 65506077 is about 8093.5824577254. The cubic root of 65506077 is about 403.1133649427.

The spelling of 65506077 in words is "sixty-five million, five hundred six thousand, seventy-seven".