527552647127321 has 4 divisors (see below), whose sum is σ = 527552926038372. Its totient is φ = 527552368216272.

The previous prime is 527552647127273. The next prime is 527552647127453. The reversal of 527552647127321 is 123721746255725.

It is a happy number.

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 303735009720025 + 223817637407296 = 17427995^2 + 14960536^2 .

It is a cyclic number.

It is not a de Polignac number, because 527552647127321 - 2¹⁸ = 527552646865177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (527552647177321) 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, 136598810 + ... + 140407763.

It is an arithmetic number, because the mean of its divisors is an integer number (131888231509593).

Almost surely, 2^{527552647127321} is an apocalyptic number.

It is an amenable number.

527552647127321 is a deficient number, since it is larger than the sum of its proper divisors (278911051).

527552647127321 is a wasteful number, since it uses less digits than its factorization.

527552647127321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278911050.

The product of its digits is 49392000, while the sum is 59.

The spelling of 527552647127321 in words is "five hundred twenty-seven trillion, five hundred fifty-two billion, six hundred forty-seven million, one hundred twenty-seven thousand, three hundred twenty-one".