552121402530 has 16 divisors (see below), whose sum is σ = 1325091366144. Its totient is φ = 147232374000.

The previous prime is 552121402517. The next prime is 552121402541. The reversal of 552121402530 is 35204121255.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 18404046751 = 552121402530 / (5 + 5 + 2 + 1 + 2 + 1 + 4 + 0 + 2 + 5 + 3 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9202023346 + ... + 9202023405.

It is an arithmetic number, because the mean of its divisors is an integer number (82818210384).

Almost surely, 2^552121402530 is an apocalyptic number.

552121402530 is an abundant number, since it is smaller than the sum of its proper divisors (772969963614).

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

552121402530 is a wasteful number, since it uses less digits than its factorization.

552121402530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18404046761.

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 552121402530 its reverse (35204121255), we get a palindrome (587325523785).

The spelling of 552121402530 in words is "five hundred fifty-two billion, one hundred twenty-one million, four hundred two thousand, five hundred thirty".