551368145 has 16 divisors (see below), whose sum is σ = 682007040. Its totient is φ = 427668864.

The previous prime is 551368133. The next prime is 551368159. The reversal of 551368145 is 541863155.

551368145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 551368145 - 2¹² = 551364049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 551368099 and 551368108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20096 + ... + 38814.

It is an arithmetic number, because the mean of its divisors is an integer number (42625440).

Almost surely, 2^551368145 is an apocalyptic number.

It is an amenable number.

551368145 is a deficient number, since it is larger than the sum of its proper divisors (130638895).

551368145 is a wasteful number, since it uses less digits than its factorization.

551368145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18904.

The product of its digits is 72000, while the sum is 38.

The square root of 551368145 is about 23481.2296313460. The cubic root of 551368145 is about 820.0000718818. Note that the first 4 decimals are identical.

The spelling of 551368145 in words is "five hundred fifty-one million, three hundred sixty-eight thousand, one hundred forty-five".