56523012 has 96 divisors (see below), whose sum is σ = 163774464. Its totient is φ = 14774400.

The previous prime is 56523007. The next prime is 56523017. The reversal of 56523012 is 21032565.

56523012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (56523007) and next prime (56523017).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (56523017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 208437 + ... + 208707.

It is an arithmetic number, because the mean of its divisors is an integer number (1705984).

Almost surely, 2^56523012 is an apocalyptic number.

56523012 is a gapful number since it is divisible by the number (52) 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 56523012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81887232).

56523012 is an abundant number, since it is smaller than the sum of its proper divisors (107251452).

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

56523012 is a wasteful number, since it uses less digits than its factorization.

56523012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489 (or 487 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 56523012 is about 7518.1787688243. The cubic root of 56523012 is about 383.7736024415.

Adding to 56523012 its reverse (21032565), we get a palindrome (77555577).

The spelling of 56523012 in words is "fifty-six million, five hundred twenty-three thousand, twelve".