552402125521 has 4 divisors (see below), whose sum is σ = 552407348032. Its totient is φ = 552396903012.

The previous prime is 552402125497. The next prime is 552402125533. The reversal of 552402125521 is 125521204255.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-552402125521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (552802125521) 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, 2449245 + ... + 2665258.

It is an arithmetic number, because the mean of its divisors is an integer number (138101837008).

Almost surely, 2^552402125521 is an apocalyptic number.

It is an amenable number.

552402125521 is a deficient number, since it is larger than the sum of its proper divisors (5222511).

552402125521 is a wasteful number, since it uses less digits than its factorization.

552402125521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5222510.

The product of its (nonzero) digits is 40000, while the sum is 34.

Adding to 552402125521 its reverse (125521204255), we get a palindrome (677923329776).

The spelling of 552402125521 in words is "five hundred fifty-two billion, four hundred two million, one hundred twenty-five thousand, five hundred twenty-one".