523269661 has 8 divisors (see below), whose sum is σ = 526699584. Its totient is φ = 519849120.

The previous prime is 523269641. The next prime is 523269667. The reversal of 523269661 is 166962325.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523269661 is a prime.

It is a super-2 number, since 2×523269661² = 547622276246109842, 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 (523269667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134601 + ... + 138433.

It is an arithmetic number, because the mean of its divisors is an integer number (65837448).

Almost surely, 2^523269661 is an apocalyptic number.

It is an amenable number.

523269661 is a deficient number, since it is larger than the sum of its proper divisors (3429923).

523269661 is a wasteful number, since it uses less digits than its factorization.

523269661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4691.

The product of its digits is 116640, while the sum is 40.

The square root of 523269661 is about 22875.0882184091. The cubic root of 523269661 is about 805.8270686427.

The spelling of 523269661 in words is "five hundred twenty-three million, two hundred sixty-nine thousand, six hundred sixty-one".