55544565 has 8 divisors (see below), whose sum is σ = 88871328. Its totient is φ = 29623760.

The previous prime is 55544561. The next prime is 55544569. The reversal of 55544565 is 56544555.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (55544561) and next prime (55544569).

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

It is not a de Polignac number, because 55544565 - 2² = 55544561 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55544561) 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, 1851471 + ... + 1851500.

It is an arithmetic number, because the mean of its divisors is an integer number (11108916).

Almost surely, 2^55544565 is an apocalyptic number.

It is an amenable number.

55544565 is a deficient number, since it is larger than the sum of its proper divisors (33326763).

55544565 is a wasteful number, since it uses less digits than its factorization.

55544565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3702979.

The product of its digits is 300000, while the sum is 39.

The square root of 55544565 is about 7452.8226196522. The cubic root of 55544565 is about 381.5462504340.

The spelling of 55544565 in words is "fifty-five million, five hundred forty-four thousand, five hundred sixty-five".