56403552 has 144 divisors (see below), whose sum is σ = 167106240. Its totient is φ = 16607232.

The previous prime is 56403541. The next prime is 56403583. The reversal of 56403552 is 25530465.

It is a super-3 number, since 3×56403552³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 527083 + ... + 527189.

It is an arithmetic number, because the mean of its divisors is an integer number (1160460).

Almost surely, 2^56403552 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 56403552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83553120).

56403552 is an abundant number, since it is smaller than the sum of its proper divisors (110702688).

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

56403552 is a wasteful number, since it uses less digits than its factorization.

56403552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173 (or 148 counting only the distinct ones).

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

The square root of 56403552 is about 7510.2298233809. The cubic root of 56403552 is about 383.5030463810.

The spelling of 56403552 in words is "fifty-six million, four hundred three thousand, five hundred fifty-two".