65955501 has 12 divisors (see below), whose sum is σ = 96113628. Its totient is φ = 43580544.

The previous prime is 65955493. The next prime is 65955503. The reversal of 65955501 is 10555956.

65955501 is a `hidden beast` number, since 65 + 95 + 5 + 501 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21399876 + 44555625 = 4626^2 + 6675^2 .

It is not a de Polignac number, because 65955501 - 2³ = 65955493 is a prime.

It is a super-2 number, since 2×65955501² = 8700256224322002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65955503) 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 11 ways as a sum of consecutive naturals, for example, 31410 + ... + 33443.

It is an arithmetic number, because the mean of its divisors is an integer number (8009469).

Almost surely, 2^65955501 is an apocalyptic number.

It is an amenable number.

65955501 is a deficient number, since it is larger than the sum of its proper divisors (30158127).

65955501 is a wasteful number, since it uses less digits than its factorization.

65955501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64972 (or 64969 counting only the distinct ones).

The product of its (nonzero) digits is 33750, while the sum is 36.

The square root of 65955501 is about 8121.2992187211. The cubic root of 65955501 is about 404.0331578347.

The spelling of 65955501 in words is "sixty-five million, nine hundred fifty-five thousand, five hundred one".