552400393 has 4 divisors (see below), whose sum is σ = 552503700. Its totient is φ = 552297088.

The previous prime is 552400391. The next prime is 552400423. The reversal of 552400393 is 393004255.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 243765769 + 308634624 = 15613^2 + 17568^2 .

It is a cyclic number.

It is not a de Polignac number, because 552400393 - 2¹ = 552400391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (552400391) 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, 43168 + ... + 54481.

It is an arithmetic number, because the mean of its divisors is an integer number (138125925).

Almost surely, 2^552400393 is an apocalyptic number.

It is an amenable number.

552400393 is a deficient number, since it is larger than the sum of its proper divisors (103307).

552400393 is an equidigital number, since it uses as much as digits as its factorization.

552400393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103306.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 552400393 is about 23503.1996332414. The cubic root of 552400393 is about 820.5114759624.

The spelling of 552400393 in words is "five hundred fifty-two million, four hundred thousand, three hundred ninety-three".