526632661 has 4 divisors (see below), whose sum is σ = 526705312. Its totient is φ = 526560012.

The previous prime is 526632637. The next prime is 526632683. The reversal of 526632661 is 166236625.

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 526632661 - 2⁵ = 526632629 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 526632661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (526632461) 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, 24075 + ... + 40408.

It is an arithmetic number, because the mean of its divisors is an integer number (131676328).

Almost surely, 2^526632661 is an apocalyptic number.

It is an amenable number.

526632661 is a deficient number, since it is larger than the sum of its proper divisors (72651).

526632661 is an equidigital number, since it uses as much as digits as its factorization.

526632661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72650.

The product of its digits is 77760, while the sum is 37.

The square root of 526632661 is about 22948.4784027177. The cubic root of 526632661 is about 807.5497059058.

The spelling of 526632661 in words is "five hundred twenty-six million, six hundred thirty-two thousand, six hundred sixty-one".