56453520 has 80 divisors (see below), whose sum is σ = 177524352. Its totient is φ = 14837760.

The previous prime is 56453519. The next prime is 56453531. The reversal of 56453520 is 2535465.

56453520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 15384 + ... + 18696.

Almost surely, 2^56453520 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 56453520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88762176).

56453520 is an abundant number, since it is smaller than the sum of its proper divisors (121070832).

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

56453520 is a wasteful number, since it uses less digits than its factorization.

56453520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3400 (or 3394 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 56453520 is about 7513.5557494438. Note that the first 3 decimals coincide. The cubic root of 56453520 is about 383.6162616161.

Adding to 56453520 its reverse (2535465), we get a palindrome (58988985).

The spelling of 56453520 in words is "fifty-six million, four hundred fifty-three thousand, five hundred twenty".