56261143630 has 32 divisors (see below), whose sum is σ = 103991469120. Its totient is φ = 21907307520.

The previous prime is 56261143607. The next prime is 56261143639. The reversal of 56261143630 is 3634116265.

It is a self number, because there is not a number n which added to its sum of digits gives 56261143630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56261143639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 416250 + ... + 534589.

It is an arithmetic number, because the mean of its divisors is an integer number (3249733410).

Almost surely, 2^56261143630 is an apocalyptic number.

56261143630 is a deficient number, since it is larger than the sum of its proper divisors (47730325490).

56261143630 is a wasteful number, since it uses less digits than its factorization.

56261143630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951004.

The product of its (nonzero) digits is 77760, while the sum is 37.

Adding to 56261143630 its reverse (3634116265), we get a palindrome (59895259895).

The spelling of 56261143630 in words is "fifty-six billion, two hundred sixty-one million, one hundred forty-three thousand, six hundred thirty".