56553798 has 64 divisors (see below), whose sum is σ = 138378240. Its totient is φ = 15040512.

The previous prime is 56553787. The next prime is 56553811. The reversal of 56553798 is 89735565.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73158 + ... + 73926.

It is an arithmetic number, because the mean of its divisors is an integer number (2162160).

Almost surely, 2^56553798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56553798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69189120).

56553798 is an abundant number, since it is smaller than the sum of its proper divisors (81824442).

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

56553798 is a wasteful number, since it uses less digits than its factorization.

56553798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901.

The product of its digits is 1134000, while the sum is 48.

The square root of 56553798 is about 7520.2259274572. The cubic root of 56553798 is about 383.8432655712.

It can be divided in two parts, 5655 and 3798, that added together give a triangular number (9453 = T₁₃₇).

The spelling of 56553798 in words is "fifty-six million, five hundred fifty-three thousand, seven hundred ninety-eight".