521372 has 6 divisors (see below), whose sum is σ = 912408. Its totient is φ = 260684.

The previous prime is 521369. The next prime is 521377. The reversal of 521372 is 273125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65168 + ... + 65175.

It is an arithmetic number, because the mean of its divisors is an integer number (152068).

2⁵²¹³⁷² is an apocalyptic number.

It is an amenable number.

521372 is a deficient number, since it is larger than the sum of its proper divisors (391036).

521372 is a wasteful number, since it uses less digits than its factorization.

521372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130347 (or 130345 counting only the distinct ones).

The product of its digits is 420, while the sum is 20.

The square root of 521372 is about 722.0609392565. The cubic root of 521372 is about 80.4851765975.

Adding to 521372 its reverse (273125), we get a palindrome (794497).

The spelling of 521372 in words is "five hundred twenty-one thousand, three hundred seventy-two".