526381249 has 3 divisors (see below), whose sum is σ = 526404193. Its totient is φ = 526358306.

The previous prime is 526381241. The next prime is 526381253. The reversal of 526381249 is 942183625.

The square root of 526381249 is 22943.

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 is not a de Polignac number, because 526381249 - 2³ = 526381241 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (526381241) 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, 11472 + ... + 34414.

Almost surely, 2^526381249 is an apocalyptic number.

526381249 is the 22943-rd square number.

526381249 is the 11472-nd centered octagonal number.

It is an amenable number.

526381249 is a deficient number, since it is larger than the sum of its proper divisors (22944).

526381249 is an frugal number, since it uses more digits than its factorization.

526381249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45886 (or 22943 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The cubic root of 526381249 is about 807.4211786176.

The spelling of 526381249 in words is "five hundred twenty-six million, three hundred eighty-one thousand, two hundred forty-nine".