56425824 has 144 divisors (see below), whose sum is σ = 197582112. Its totient is φ = 14874624.

The previous prime is 56425823. The next prime is 56425841. The reversal of 56425824 is 42852465.

It is a happy number.

56425824 is a `hidden beast` number, since 5 + 642 + 5 + 8 + 2 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×56425824² = 6367747228157952, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56425823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25132 + ... + 27284.

It is an arithmetic number, because the mean of its divisors is an integer number (1372098).

Almost surely, 2^56425824 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 56425824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98791056).

56425824 is an abundant number, since it is smaller than the sum of its proper divisors (141156288).

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

56425824 is a wasteful number, since it uses less digits than its factorization.

56425824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2189 (or 2178 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The square root of 56425824 is about 7511.7124545605. The cubic root of 56425824 is about 383.5535175278.

The spelling of 56425824 in words is "fifty-six million, four hundred twenty-five thousand, eight hundred twenty-four".