53890065 has 48 divisors (see below), whose sum is σ = 96235776. Its totient is φ = 27888000.

The previous prime is 53890009. The next prime is 53890103. The reversal of 53890065 is 56009835.

It is not a de Polignac number, because 53890065 - 2¹⁰ = 53889041 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 322612 + ... + 322778.

It is an arithmetic number, because the mean of its divisors is an integer number (2004912).

Almost surely, 2^53890065 is an apocalyptic number.

It is an amenable number.

53890065 is a deficient number, since it is larger than the sum of its proper divisors (42345711).

53890065 is a wasteful number, since it uses less digits than its factorization.

53890065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350 (or 347 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 53890065 is about 7340.9852880931. The cubic root of 53890065 is about 377.7196417812.

The spelling of 53890065 in words is "fifty-three million, eight hundred ninety thousand, sixty-five".