56523528 has 64 divisors (see below), whose sum is σ = 158140800. Its totient is φ = 18705600.

The previous prime is 56523517. The next prime is 56523529. The reversal of 56523528 is 82532565.

It is a happy number.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 56523492 and 56523501.

It is not an unprimeable number, because it can be changed into a prime (56523529) 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, 31750 + ... + 33482.

It is an arithmetic number, because the mean of its divisors is an integer number (2470950).

Almost surely, 2^56523528 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56523528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79070400).

56523528 is an abundant number, since it is smaller than the sum of its proper divisors (101617272).

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

56523528 is a wasteful number, since it uses less digits than its factorization.

56523528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1899 (or 1889 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 56523528 is about 7518.2130855676. The cubic root of 56523528 is about 383.7747702643.

It can be divided in two parts, 5652 and 3528, that added together give a triangular number (9180 = T₁₃₅).

The spelling of 56523528 in words is "fifty-six million, five hundred twenty-three thousand, five hundred twenty-eight".