55005550555001 has 4 divisors (see below), whose sum is σ = 57900579531600. Its totient is φ = 52110521578404.

The previous prime is 55005550554971. The next prime is 55005550555069. The reversal of 55005550555001 is 10055505550055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55005550555001 - 2¹⁰ = 55005550553977 is a prime.

It is a super-2 number, since 2×55005550555001² (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 55005550555001.

It is not an unprimeable number, because it can be changed into a prime (55005550555801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1447514488271 + ... + 1447514488308.

It is an arithmetic number, because the mean of its divisors is an integer number (14475144882900).

Almost surely, 2^{55005550555001} is an apocalyptic number.

It is an amenable number.

55005550555001 is a deficient number, since it is larger than the sum of its proper divisors (2895028976599).

55005550555001 is a wasteful number, since it uses less digits than its factorization.

55005550555001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2895028976598.

The product of its (nonzero) digits is 390625, while the sum is 41.

The spelling of 55005550555001 in words is "fifty-five trillion, five billion, five hundred fifty million, five hundred fifty-five thousand, one".