55456565 has 8 divisors (see below), whose sum is σ = 69441408. Its totient is φ = 42436240.

The previous prime is 55456547. The next prime is 55456571. The reversal of 55456565 is 56565455.

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

It is not a de Polignac number, because 55456565 - 2¹⁴ = 55440181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241001 + ... + 241230.

It is an arithmetic number, because the mean of its divisors is an integer number (8680176).

Almost surely, 2^55456565 is an apocalyptic number.

It is an amenable number.

55456565 is a deficient number, since it is larger than the sum of its proper divisors (13984843).

55456565 is a wasteful number, since it uses less digits than its factorization.

55456565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482259.

The product of its digits is 450000, while the sum is 41.

The square root of 55456565 is about 7446.9164759651. The cubic root of 55456565 is about 381.3446476469.

The spelling of 55456565 in words is "fifty-five million, four hundred fifty-six thousand, five hundred sixty-five".