523113587 has 8 divisors (see below), whose sum is σ = 553547520. Its totient is φ = 493320520.

The previous prime is 523113517. The next prime is 523113599. The reversal of 523113587 is 785311325.

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-523113587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (523113517) 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, 158537 + ... + 161802.

It is an arithmetic number, because the mean of its divisors is an integer number (69193440).

Almost surely, 2^523113587 is an apocalyptic number.

523113587 is a deficient number, since it is larger than the sum of its proper divisors (30433933).

523113587 is a wasteful number, since it uses less digits than its factorization.

523113587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320433.

The product of its digits is 25200, while the sum is 35.

The square root of 523113587 is about 22871.6765235957. The cubic root of 523113587 is about 805.7469435054.

The spelling of 523113587 in words is "five hundred twenty-three million, one hundred thirteen thousand, five hundred eighty-seven".