526245613 has 2 divisors, whose sum is σ = 526245614. Its totient is φ = 526245612.

The previous prime is 526245611. The next prime is 526245637. The reversal of 526245613 is 316542625.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 416037609 + 110208004 = 20397^2 + 10498^2 .

It is a cyclic number.

It is not a de Polignac number, because 526245613 - 2¹ = 526245611 is a prime.

Together with 526245611, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (526245611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263122806 + 263122807.

It is an arithmetic number, because the mean of its divisors is an integer number (263122807).

Almost surely, 2^526245613 is an apocalyptic number.

It is an amenable number.

526245613 is a deficient number, since it is larger than the sum of its proper divisors (1).

526245613 is an equidigital number, since it uses as much as digits as its factorization.

526245613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 34.

The square root of 526245613 is about 22940.0438752850. The cubic root of 526245613 is about 807.3518215454.

The spelling of 526245613 in words is "five hundred twenty-six million, two hundred forty-five thousand, six hundred thirteen".