65481854 has 16 divisors (see below), whose sum is σ = 99891792. Its totient is φ = 32188608.

The previous prime is 65481833. The next prime is 65481883. The reversal of 65481854 is 45818456.

It is a super-3 number, since 3×65481854³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 37832 + ... + 39524.

It is an arithmetic number, because the mean of its divisors is an integer number (6243237).

Almost surely, 2^65481854 is an apocalyptic number.

65481854 is a deficient number, since it is larger than the sum of its proper divisors (34409938).

65481854 is a wasteful number, since it uses less digits than its factorization.

65481854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011.

The product of its digits is 153600, while the sum is 41.

The square root of 65481854 is about 8092.0858868403. The cubic root of 65481854 is about 403.0636707295.

The spelling of 65481854 in words is "sixty-five million, four hundred eighty-one thousand, eight hundred fifty-four".