521852 has 12 divisors (see below), whose sum is σ = 918456. Its totient is φ = 259440.

The previous prime is 521831. The next prime is 521861. The reversal of 521852 is 258125.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 521852.

It is an unprimeable number.

521852 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 902 + ... + 1362.

It is an arithmetic number, because the mean of its divisors is an integer number (76538).

2⁵²¹⁸⁵² is an apocalyptic number.

It is an amenable number.

521852 is a deficient number, since it is larger than the sum of its proper divisors (396604).

521852 is a wasteful number, since it uses less digits than its factorization.

521852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748 (or 746 counting only the distinct ones).

The product of its digits is 800, while the sum is 23.

The square root of 521852 is about 722.3932447082. The cubic root of 521852 is about 80.5098685226.

Adding to 521852 its reverse (258125), we get a palindrome (779977).

The spelling of 521852 in words is "five hundred twenty-one thousand, eight hundred fifty-two".