550500100551 has 8 divisors (see below), whose sum is σ = 815555704560. Its totient is φ = 367000067016.

The previous prime is 550500100477. The next prime is 550500100567. The reversal of 550500100551 is 155001005055.

550500100551 is a `hidden beast` number, since 5 + 5 + 0 + 5 + 0 + 0 + 100 + 551 = 666.

It is not a de Polignac number, because 550500100551 - 2²¹ = 550498003399 is a prime.

It is a super-2 number, since 2×550500100551² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 20388892613 = 550500100551 / (5 + 5 + 0 + 5 + 0 + 0 + 1 + 0 + 0 + 5 + 5 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550500107551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10194446280 + ... + 10194446333.

It is an arithmetic number, because the mean of its divisors is an integer number (101944463070).

Almost surely, 2^550500100551 is an apocalyptic number.

550500100551 is a deficient number, since it is larger than the sum of its proper divisors (265055604009).

550500100551 is a wasteful number, since it uses less digits than its factorization.

550500100551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20388892622 (or 20388892616 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 27.

The spelling of 550500100551 in words is "five hundred fifty billion, five hundred million, one hundred thousand, five hundred fifty-one".