55500455 has 8 divisors (see below), whose sum is σ = 67594992. Its totient is φ = 43737408.

The previous prime is 55500451. The next prime is 55500457. The reversal of 55500455 is 55400555.

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 55500455 - 2² = 55500451 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 (55500451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82502 + ... + 83171.

It is an arithmetic number, because the mean of its divisors is an integer number (8449374).

Almost surely, 2^55500455 is an apocalyptic number.

55500455 is a deficient number, since it is larger than the sum of its proper divisors (12094537).

55500455 is a wasteful number, since it uses less digits than its factorization.

55500455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165745.

The product of its (nonzero) digits is 12500, while the sum is 29.

The square root of 55500455 is about 7449.8627504136. The cubic root of 55500455 is about 381.4452236748.

It can be divided in two parts, 55500 and 455, that added together give a palindrome (55955).

The spelling of 55500455 in words is "fifty-five million, five hundred thousand, four hundred fifty-five".