65055889 has 8 divisors (see below), whose sum is σ = 70563528. Its totient is φ = 59735040.

The previous prime is 65055883. The next prime is 65055911. The reversal of 65055889 is 98855056.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2772225 + 62283664 = 1665^2 + 7892^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65055889 - 2⁹ = 65055377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65055883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45972 + ... + 47365.

It is an arithmetic number, because the mean of its divisors is an integer number (8820441).

Almost surely, 2^65055889 is an apocalyptic number.

It is an amenable number.

65055889 is a deficient number, since it is larger than the sum of its proper divisors (5507639).

65055889 is a wasteful number, since it uses less digits than its factorization.

65055889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93395.

The product of its (nonzero) digits is 432000, while the sum is 46.

The square root of 65055889 is about 8065.7230921970. The cubic root of 65055889 is about 402.1877809703.

The spelling of 65055889 in words is "sixty-five million, fifty-five thousand, eight hundred eighty-nine".