552778406 has 8 divisors (see below), whose sum is σ = 830084520. Its totient is φ = 276083568.

The previous prime is 552778403. The next prime is 552778427. The reversal of 552778406 is 604877255.

552778406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×552778406² = 611127932279801672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552778403) 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, 150551 + ... + 154178.

It is an arithmetic number, because the mean of its divisors is an integer number (103760565).

Almost surely, 2^552778406 is an apocalyptic number.

552778406 is a deficient number, since it is larger than the sum of its proper divisors (277306114).

552778406 is a wasteful number, since it uses less digits than its factorization.

552778406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305638.

The product of its (nonzero) digits is 470400, while the sum is 44.

The square root of 552778406 is about 23511.2399928205. The cubic root of 552778406 is about 820.6985946333.

The spelling of 552778406 in words is "five hundred fifty-two million, seven hundred seventy-eight thousand, four hundred six".