526613489 has 4 divisors (see below), whose sum is σ = 540846324. Its totient is φ = 512380656.

The previous prime is 526613413. The next prime is 526613491. The reversal of 526613489 is 984316625.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 310288225 + 216325264 = 17615^2 + 14708^2 .

It is a cyclic number.

It is not a de Polignac number, because 526613489 - 2¹² = 526609393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (526613189) 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, 7116362 + ... + 7116435.

It is an arithmetic number, because the mean of its divisors is an integer number (135211581).

Almost surely, 2^526613489 is an apocalyptic number.

It is an amenable number.

526613489 is a deficient number, since it is larger than the sum of its proper divisors (14232835).

526613489 is a wasteful number, since it uses less digits than its factorization.

526613489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14232834.

The product of its digits is 311040, while the sum is 44.

The square root of 526613489 is about 22948.0606805891. The cubic root of 526613489 is about 807.5399062029.

The spelling of 526613489 in words is "five hundred twenty-six million, six hundred thirteen thousand, four hundred eighty-nine".