530731656 has 384 divisors, whose sum is σ = 1911398400. Its totient is φ = 133436160.

The previous prime is 530731651. The next prime is 530731657. The reversal of 530731656 is 656137035.

It is a happy number.

530731656 is a `hidden beast` number, since 530 + 73 + 1 + 6 + 56 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 530731656.

It is not an unprimeable number, because it can be changed into a prime (530731651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7921335 + ... + 7921401.

It is an arithmetic number, because the mean of its divisors is an integer number (4977600).

Almost surely, 2^530731656 is an apocalyptic number.

530731656 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 530731656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (955699200).

530731656 is an abundant number, since it is smaller than the sum of its proper divisors (1380666744).

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

530731656 is a wasteful number, since it uses less digits than its factorization.

530731656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 36.

The square root of 530731656 is about 23037.6139389478. The cubic root of 530731656 is about 809.6394554516.

It can be divided in two parts, 5307 and 31656, that added together give a palindrome (36963).

The spelling of 530731656 in words is "five hundred thirty million, seven hundred thirty-one thousand, six hundred fifty-six".