523012616 has 64 divisors (see below), whose sum is σ = 1212019200. Its totient is φ = 206456832.

The previous prime is 523012603. The next prime is 523012619. The reversal of 523012616 is 616210325.

It is not an unprimeable number, because it can be changed into a prime (523012619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38900 + ... + 50588.

It is an arithmetic number, because the mean of its divisors is an integer number (18937800).

Almost surely, 2^523012616 is an apocalyptic number.

523012616 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 523012616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (606009600).

523012616 is an abundant number, since it is smaller than the sum of its proper divisors (689006584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

523012616 is a wasteful number, since it uses less digits than its factorization.

523012616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11766 (or 11762 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 523012616 is about 22869.4690799765. The cubic root of 523012616 is about 805.6950986087.

The spelling of 523012616 in words is "five hundred twenty-three million, twelve thousand, six hundred sixteen".