553052778 has 8 divisors (see below), whose sum is σ = 1106105568. Its totient is φ = 184350924.

The previous prime is 553052777. The next prime is 553052791. The reversal of 553052778 is 877250355.

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

553052778 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (553052777) 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, 46087726 + ... + 46087737.

It is an arithmetic number, because the mean of its divisors is an integer number (138263196).

Almost surely, 2^553052778 is an apocalyptic number.

553052778 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

553052778 is a wasteful number, since it uses less digits than its factorization.

553052778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92175468.

The product of its (nonzero) digits is 294000, while the sum is 42.

The square root of 553052778 is about 23517.0741802632. The cubic root of 553052778 is about 820.8343569732.

The spelling of 553052778 in words is "five hundred fifty-three million, fifty-two thousand, seven hundred seventy-eight".