551388468 has 24 divisors (see below), whose sum is σ = 1310849568. Its totient is φ = 180328096.

The previous prime is 551388463. The next prime is 551388469. The reversal of 551388468 is 864883155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551388463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 432846 + ... + 434117.

It is an arithmetic number, because the mean of its divisors is an integer number (54618732).

Almost surely, 2^551388468 is an apocalyptic number.

It is an amenable number.

551388468 is an abundant number, since it is smaller than the sum of its proper divisors (759461100).

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

551388468 is a wasteful number, since it uses less digits than its factorization.

551388468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867023 (or 867021 counting only the distinct ones).

The product of its digits is 921600, while the sum is 48.

The square root of 551388468 is about 23481.6623772679. The cubic root of 551388468 is about 820.0101466125.

The spelling of 551388468 in words is "five hundred fifty-one million, three hundred eighty-eight thousand, four hundred sixty-eight".