372065521 has 3 divisors (see below), whose sum is σ = 372084811. Its totient is φ = 372046232.

The previous prime is 372065513. The next prime is 372065527. The reversal of 372065521 is 125560273.

The square root of 372065521 is 19289.

It is a perfect power (a square), and thus also a powerful number.

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 can be written as a sum of positive squares in only one way, i.e., 258855921 + 113209600 = 16089^2 + 10640^2 .

It is not a de Polignac number, because 372065521 - 2³ = 372065513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (372065527) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 9645 + ... + 28933.

Almost surely, 2^372065521 is an apocalyptic number.

372065521 is the 19289-th square number.

372065521 is the 9645-th centered octagonal number.

It is an amenable number.

372065521 is a deficient number, since it is larger than the sum of its proper divisors (19290).

372065521 is an frugal number, since it uses more digits than its factorization.

372065521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38578 (or 19289 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 31.

The cubic root of 372065521 is about 719.2388567829.

The spelling of 372065521 in words is "three hundred seventy-two million, sixty-five thousand, five hundred twenty-one".