55558075 has 24 divisors (see below), whose sum is σ = 71714160. Its totient is φ = 42662400.

The previous prime is 55558039. The next prime is 55558079. The reversal of 55558075 is 57085555.

It is not a de Polignac number, because 55558075 - 2⁹ = 55557563 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (55558079) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68271 + ... + 69079.

It is an arithmetic number, because the mean of its divisors is an integer number (2988090).

Almost surely, 2^55558075 is an apocalyptic number.

55558075 is a deficient number, since it is larger than the sum of its proper divisors (16156085).

55558075 is a wasteful number, since it uses less digits than its factorization.

55558075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927 (or 922 counting only the distinct ones).

The product of its (nonzero) digits is 175000, while the sum is 40.

The square root of 55558075 is about 7453.7289325545. The cubic root of 55558075 is about 381.5771821851.

The spelling of 55558075 in words is "fifty-five million, five hundred fifty-eight thousand, seventy-five".