523274507125521 has 4 divisors (see below), whose sum is σ = 697699342834032. Its totient is φ = 348849671417012.

The previous prime is 523274507125483. The next prime is 523274507125549. The reversal of 523274507125521 is 125521705472325.

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 not a de Polignac number, because 523274507125521 - 2²¹ = 523274505028369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (523274507124521) 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, 87212417854251 + ... + 87212417854256.

It is an arithmetic number, because the mean of its divisors is an integer number (174424835708508).

Almost surely, 2^{523274507125521} is an apocalyptic number.

It is an amenable number.

523274507125521 is a deficient number, since it is larger than the sum of its proper divisors (174424835708511).

523274507125521 is a wasteful number, since it uses less digits than its factorization.

523274507125521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174424835708510.

The product of its (nonzero) digits is 5880000, while the sum is 51.

The spelling of 523274507125521 in words is "five hundred twenty-three trillion, two hundred seventy-four billion, five hundred seven million, one hundred twenty-five thousand, five hundred twenty-one".