528055055749 has 4 divisors (see below), whose sum is σ = 568674675436. Its totient is φ = 487435436064.

The previous prime is 528055055729. The next prime is 528055055771. The reversal of 528055055749 is 947550550825.

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 54823881025 + 473231174724 = 234145^2 + 687918^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-528055055749 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 528055055749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528055055729) 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, 20309809824 + ... + 20309809849.

It is an arithmetic number, because the mean of its divisors is an integer number (142168668859).

Almost surely, 2^528055055749 is an apocalyptic number.

It is an amenable number.

528055055749 is a deficient number, since it is larger than the sum of its proper divisors (40619619687).

528055055749 is a wasteful number, since it uses less digits than its factorization.

528055055749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40619619686.

The product of its (nonzero) digits is 12600000, while the sum is 55.

The spelling of 528055055749 in words is "five hundred twenty-eight billion, fifty-five million, fifty-five thousand, seven hundred forty-nine".