553655520 has 384 divisors, whose sum is σ = 2159861760. Its totient is φ = 131328000.

The previous prime is 553655519. The next prime is 553655521. The reversal of 553655520 is 25556355.

553655520 is a `hidden beast` number, since 55 + 36 + 55 + 520 = 666.

It is an interprime number because it is at equal distance from previous prime (553655519) and next prime (553655521).

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 (553655521) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2898625 + ... + 2898815.

It is an arithmetic number, because the mean of its divisors is an integer number (5624640).

Almost surely, 2^553655520 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 553655520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1079930880).

553655520 is an abundant number, since it is smaller than the sum of its proper divisors (1606206240).

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

553655520 is a wasteful number, since it uses less digits than its factorization.

553655520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 36.

The square root of 553655520 is about 23529.8856775803. The cubic root of 553655520 is about 821.1324428800.

The spelling of 553655520 in words is "five hundred fifty-three million, six hundred fifty-five thousand, five hundred twenty".