55557345 has 8 divisors (see below), whose sum is σ = 88891776. Its totient is φ = 29630576.

The previous prime is 55557331. The next prime is 55557361. The reversal of 55557345 is 54375555.

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

It is a cyclic number.

It is not a de Polignac number, because 55557345 - 2⁷ = 55557217 is a prime.

It is a Curzon 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, 1851897 + ... + 1851926.

It is an arithmetic number, because the mean of its divisors is an integer number (11111472).

Almost surely, 2^55557345 is an apocalyptic number.

It is an amenable number.

55557345 is a deficient number, since it is larger than the sum of its proper divisors (33334431).

55557345 is a wasteful number, since it uses less digits than its factorization.

55557345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3703831.

The product of its digits is 262500, while the sum is 39.

The square root of 55557345 is about 7453.6799636153. The cubic root of 55557345 is about 381.5755109455.

The spelling of 55557345 in words is "fifty-five million, five hundred fifty-seven thousand, three hundred forty-five".