526225261 has 4 divisors (see below), whose sum is σ = 526274524. Its totient is φ = 526176000.

The previous prime is 526225253. The next prime is 526225267. The reversal of 526225261 is 162522625.

It is a happy 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 2 ways, for example, as 260209161 + 266016100 = 16131^2 + 16310^2 .

It is a cyclic number.

It is not a de Polignac number, because 526225261 - 2³ = 526225253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (526225267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1140 + ... + 32461.

It is an arithmetic number, because the mean of its divisors is an integer number (131568631).

Almost surely, 2^526225261 is an apocalyptic number.

It is an amenable number.

526225261 is a deficient number, since it is larger than the sum of its proper divisors (49263).

526225261 is a wasteful number, since it uses less digits than its factorization.

526225261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49262.

The product of its digits is 14400, while the sum is 31.

The square root of 526225261 is about 22939.6002798654. The cubic root of 526225261 is about 807.3414135815.

Adding to 526225261 its reverse (162522625), we get a palindrome (688747886).

The spelling of 526225261 in words is "five hundred twenty-six million, two hundred twenty-five thousand, two hundred sixty-one".