563978520 has 192 divisors, whose sum is σ = 2205216000. Its totient is φ = 122114304.

The previous prime is 563978491. The next prime is 563978543. The reversal of 563978520 is 25879365.

It is a happy number.

563978520 is a `hidden beast` number, since 5 + 639 + 7 + 8 + 5 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41991 + ... + 53769.

It is an arithmetic number, because the mean of its divisors is an integer number (11485500).

Almost surely, 2^563978520 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 563978520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1102608000).

563978520 is an abundant number, since it is smaller than the sum of its proper divisors (1641237480).

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

563978520 is a wasteful number, since it uses less digits than its factorization.

563978520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11822 (or 11815 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The square root of 563978520 is about 23748.2319341883. The cubic root of 563978520 is about 826.2044336056.

The spelling of 563978520 in words is "five hundred sixty-three million, nine hundred seventy-eight thousand, five hundred twenty".