55000050551 has 16 divisors (see below), whose sum is σ = 55628365248. Its totient is φ = 54375628800.

The previous prime is 55000050541. The next prime is 55000050577. The reversal of 55000050551 is 15505000055.

It is a de Polignac number, because none of the positive numbers 2^k-55000050551 is a prime.

It is a super-2 number, since 2×55000050551² (a number of 22 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 55000050551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55000050541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66828326 + ... + 66829148.

It is an arithmetic number, because the mean of its divisors is an integer number (3476772828).

Almost surely, 2^55000050551 is an apocalyptic number.

55000050551 is a deficient number, since it is larger than the sum of its proper divisors (628314697).

55000050551 is a wasteful number, since it uses less digits than its factorization.

55000050551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2362.

The product of its (nonzero) digits is 3125, while the sum is 26.

The spelling of 55000050551 in words is "fifty-five billion, fifty thousand, five hundred fifty-one".