551145112 has 16 divisors (see below), whose sum is σ = 1181025360. Its totient is φ = 236205024.

The previous prime is 551145107. The next prime is 551145131. The reversal of 551145112 is 211541155.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4920883 + ... + 4920994.

It is an arithmetic number, because the mean of its divisors is an integer number (73814085).

Almost surely, 2^551145112 is an apocalyptic number.

It is an amenable number.

551145112 is an abundant number, since it is smaller than the sum of its proper divisors (629880248).

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

551145112 is a wasteful number, since it uses less digits than its factorization.

551145112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9841890 (or 9841886 counting only the distinct ones).

The product of its digits is 1000, while the sum is 25.

The square root of 551145112 is about 23476.4799746470. The cubic root of 551145112 is about 819.8894913541.

Adding to 551145112 its reverse (211541155), we get a palindrome (762686267).

The spelling of 551145112 in words is "five hundred fifty-one million, one hundred forty-five thousand, one hundred twelve".