552015640 has 64 divisors (see below), whose sum is σ = 1413884160. Its totient is φ = 192001920.

The previous prime is 552015593. The next prime is 552015643. The reversal of 552015640 is 46510255.

It is a junction number, because it is equal to n+sod(n) for n = 552015599 and 552015608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552015643) 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 15 ways as a sum of consecutive naturals, for example, 17154 + ... + 37393.

It is an arithmetic number, because the mean of its divisors is an integer number (22091940).

Almost surely, 2^552015640 is an apocalyptic number.

It is an amenable number.

552015640 is an abundant number, since it is smaller than the sum of its proper divisors (861868520).

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

552015640 is a wasteful number, since it uses less digits than its factorization.

552015640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54592 (or 54588 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 552015640 is about 23495.0130878874. The cubic root of 552015640 is about 820.3209332696.

Adding to 552015640 its reverse (46510255), we get a palindrome (598525895).

The spelling of 552015640 in words is "five hundred fifty-two million, fifteen thousand, six hundred forty".