551101120 has 28 divisors (see below), whose sum is σ = 1312310304. Its totient is φ = 220440320.

The previous prime is 551101097. The next prime is 551101127. The reversal of 551101120 is 21101155.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 551101094 and 551101103.

It is not an unprimeable number, because it can be changed into a prime (551101127) 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, 860776 + ... + 861415.

Almost surely, 2^551101120 is an apocalyptic number.

It is an amenable number.

551101120 is an abundant number, since it is smaller than the sum of its proper divisors (761209184).

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

551101120 is a wasteful number, since it uses less digits than its factorization.

551101120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722208 (or 1722198 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 16.

The square root of 551101120 is about 23475.5430182137. The cubic root of 551101120 is about 819.8676764470.

Adding to 551101120 its reverse (21101155), we get a palindrome (572202275).

The spelling of 551101120 in words is "five hundred fifty-one million, one hundred one thousand, one hundred twenty".