525461213 has 4 divisors (see below), whose sum is σ = 525590208. Its totient is φ = 525332220.

The previous prime is 525461203. The next prime is 525461231. The reversal of 525461213 is 312164525.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 525461213 - 2¹⁰ = 525460189 is a prime.

It is a super-2 number, since 2×525461213² = 552218972734862738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525461203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58181 + ... + 66602.

It is an arithmetic number, because the mean of its divisors is an integer number (131397552).

Almost surely, 2^525461213 is an apocalyptic number.

It is an amenable number.

525461213 is a deficient number, since it is larger than the sum of its proper divisors (128995).

525461213 is a wasteful number, since it uses less digits than its factorization.

525461213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128994.

The product of its digits is 7200, while the sum is 29.

The square root of 525461213 is about 22922.9407581139. The cubic root of 525461213 is about 806.9504869694.

The spelling of 525461213 in words is "five hundred twenty-five million, four hundred sixty-one thousand, two hundred thirteen".