55557365 has 8 divisors (see below), whose sum is σ = 66712248. Its totient is φ = 44416960.

The previous prime is 55557361. The next prime is 55557367. The reversal of 55557365 is 56375555.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 34562641 + 20994724 = 5879^2 + 4582^2 .

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

It is not a de Polignac number, because 55557365 - 2² = 55557361 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55557361) 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, 8555 + ... + 13575.

It is an arithmetic number, because the mean of its divisors is an integer number (8339031).

Almost surely, 2^55557365 is an apocalyptic number.

It is an amenable number.

55557365 is a deficient number, since it is larger than the sum of its proper divisors (11154883).

55557365 is a wasteful number, since it uses less digits than its factorization.

55557365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7239.

The product of its digits is 393750, while the sum is 41.

The square root of 55557365 is about 7453.6813052343. The cubic root of 55557365 is about 381.5755567331.

The spelling of 55557365 in words is "fifty-five million, five hundred fifty-seven thousand, three hundred sixty-five".