521948 has 18 divisors (see below), whose sum is σ = 1062936. Its totient is φ = 223608.

The previous prime is 521929. The next prime is 521981. The reversal of 521948 is 849125.

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 521948.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1136 + ... + 1527.

It is an arithmetic number, because the mean of its divisors is an integer number (59052).

2⁵²¹⁹⁴⁸ is an apocalyptic number.

It is an amenable number.

521948 is an abundant number, since it is smaller than the sum of its proper divisors (540988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

521948 is a wasteful number, since it uses less digits than its factorization.

521948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2681 (or 2672 counting only the distinct ones).

The product of its digits is 2880, while the sum is 29.

The square root of 521948 is about 722.4596874567. The cubic root of 521948 is about 80.5148050905.

The spelling of 521948 in words is "five hundred twenty-one thousand, nine hundred forty-eight".