552265138 has 4 divisors (see below), whose sum is σ = 828397710. Its totient is φ = 276132568.

The previous prime is 552265117. The next prime is 552265139. The reversal of 552265138 is 831562255.

It is a happy number.

552265138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 831562255 = 5 ⋅166312451.

It can be written as a sum of positive squares in only one way, i.e., 427786489 + 124478649 = 20683^2 + 11157^2 .

It is a junction number, because it is equal to n+sod(n) for n = 552265097 and 552265106.

It is not an unprimeable number, because it can be changed into a prime (552265139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138066283 + ... + 138066286.

Almost surely, 2^552265138 is an apocalyptic number.

552265138 is a deficient number, since it is larger than the sum of its proper divisors (276132572).

552265138 is a wasteful number, since it uses less digits than its factorization.

552265138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276132571.

The product of its digits is 72000, while the sum is 37.

The square root of 552265138 is about 23500.3220828992. The cubic root of 552265138 is about 820.4445032013. Note that the first 3 decimals are identical.

The spelling of 552265138 in words is "five hundred fifty-two million, two hundred sixty-five thousand, one hundred thirty-eight".