551000110050 has 144 divisors (see below), whose sum is σ = 1602490512168. Its totient is φ = 134927769600.

The previous prime is 551000109977. The next prime is 551000110051. The reversal of 551000110050 is 50011000155.

551000110050 is a `hidden beast` number, since 5 + 510 + 0 + 0 + 1 + 100 + 50 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 1212201 + 550998897849 = 1101^2 + 742293^2 .

It is a super-2 number, since 2×551000110050² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (551000110051) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 885040 + ... + 1373060.

Almost surely, 2^551000110050 is an apocalyptic number.

551000110050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 551000110050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (801245256084).

551000110050 is an abundant number, since it is smaller than the sum of its proper divisors (1051490402118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

551000110050 is a wasteful number, since it uses less digits than its factorization.

551000110050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488245 (or 488237 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 18.

The spelling of 551000110050 in words is "five hundred fifty-one billion, one hundred ten thousand, fifty".