551106428 has 12 divisors (see below), whose sum is σ = 964613832. Its totient is φ = 275502480.

The previous prime is 551106403. The next prime is 551106463. The reversal of 551106428 is 824601155.

It is a junction number, because it is equal to n+sod(n) for n = 551106394 and 551106403.

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, 22763 + ... + 40253.

It is an arithmetic number, because the mean of its divisors is an integer number (80384486).

Almost surely, 2^551106428 is an apocalyptic number.

It is an amenable number.

551106428 is a deficient number, since it is larger than the sum of its proper divisors (413507404).

551106428 is a wasteful number, since it uses less digits than its factorization.

551106428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25372 (or 25370 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 551106428 is about 23475.6560717693. The cubic root of 551106428 is about 819.8703086582.

The spelling of 551106428 in words is "five hundred fifty-one million, one hundred six thousand, four hundred twenty-eight".