522052057 has 4 divisors (see below), whose sum is σ = 534785076. Its totient is φ = 509319040.

The previous prime is 522052051. The next prime is 522052061. The reversal of 522052057 is 750250225.

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 119006281 + 403045776 = 10909^2 + 20076^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-522052057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (522052051) 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, 6366448 + ... + 6366529.

It is an arithmetic number, because the mean of its divisors is an integer number (133696269).

Almost surely, 2^522052057 is an apocalyptic number.

It is an amenable number.

522052057 is a deficient number, since it is larger than the sum of its proper divisors (12733019).

522052057 is a wasteful number, since it uses less digits than its factorization.

522052057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12733018.

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 522052057 is about 22848.4585256861. The cubic root of 522052057 is about 805.2015528649.

The spelling of 522052057 in words is "five hundred twenty-two million, fifty-two thousand, fifty-seven".