1563650830 has 32 divisors (see below), whose sum is σ = 3218641920. Its totient is φ = 535777440.

The previous prime is 1563650827. The next prime is 1563650831. The reversal of 1563650830 is 380563651.

It is a self number, because there is not a number n which added to its sum of digits gives 1563650830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1563650831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125001 + ... + 136939.

It is an arithmetic number, because the mean of its divisors is an integer number (100582560).

Almost surely, 2^1563650830 is an apocalyptic number.

1563650830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1563650830 is an abundant number, since it is smaller than the sum of its proper divisors (1654991090).

1563650830 is a wasteful number, since it uses less digits than its factorization.

1563650830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13824.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 1563650830 is about 39543.0250486732. The cubic root of 1563650830 is about 1160.6820280712.

It can be divided in two parts, 15636 and 50830, that added together give a palindrome (66466).

The spelling of 1563650830 in words is "one billion, five hundred sixty-three million, six hundred fifty thousand, eight hundred thirty".