55055625785 has 8 divisors (see below), whose sum is σ = 69543948480. Its totient is φ = 41726368944.

The previous prime is 55055625773. The next prime is 55055625797. The reversal of 55055625785 is 58752655055.

It is an interprime number because it is at equal distance from previous prime (55055625773) and next prime (55055625797).

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 55055625785 - 2⁴ = 55055625769 is a prime.

It is a super-2 number, since 2×55055625785² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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, 289766357 + ... + 289766546.

It is an arithmetic number, because the mean of its divisors is an integer number (8692993560).

Almost surely, 2^55055625785 is an apocalyptic number.

It is an amenable number.

55055625785 is a deficient number, since it is larger than the sum of its proper divisors (14488322695).

55055625785 is a wasteful number, since it uses less digits than its factorization.

55055625785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579532927.

The product of its (nonzero) digits is 10500000, while the sum is 53.

The spelling of 55055625785 in words is "fifty-five billion, fifty-five million, six hundred twenty-five thousand, seven hundred eighty-five".