55605266250655 has 8 divisors (see below), whose sum is σ = 72792348546384. Its totient is φ = 40440193636800.

The previous prime is 55605266250647. The next prime is 55605266250673.

It is a happy number.

55605266250655 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 55605266250655 - 2³ = 55605266250647 is a prime.

It is a super-2 number, since 2×55605266250655² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55605266250655.

It is a congruent 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, 505502420406 + ... + 505502420515.

It is an arithmetic number, because the mean of its divisors is an integer number (9099043568298).

Almost surely, 2^{55605266250655} is an apocalyptic number.

55605266250655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55605266250655 is a deficient number, since it is larger than the sum of its proper divisors (17187082295729).

55605266250655 is a wasteful number, since it uses less digits than its factorization.

55605266250655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011004840937.

The product of its (nonzero) digits is 81000000, while the sum is 58.

The spelling of 55605266250655 in words is "fifty-five trillion, six hundred five billion, two hundred sixty-six million, two hundred fifty thousand, six hundred fifty-five".