525542440571 has 4 divisors (see below), whose sum is σ = 525543924000. Its totient is φ = 525540957144.

The previous prime is 525542440559. The next prime is 525542440573. The reversal of 525542440571 is 175044245525.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 525542440571 - 2¹⁰ = 525542439547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (525542440573) 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, 135605 + ... + 1034153.

It is an arithmetic number, because the mean of its divisors is an integer number (131385981000).

Almost surely, 2^525542440571 is an apocalyptic number.

525542440571 is a deficient number, since it is larger than the sum of its proper divisors (1483429).

525542440571 is an equidigital number, since it uses as much as digits as its factorization.

525542440571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483428.

The product of its (nonzero) digits is 1120000, while the sum is 44.

The spelling of 525542440571 in words is "five hundred twenty-five billion, five hundred forty-two million, four hundred forty thousand, five hundred seventy-one".