56042163490 has 8 divisors (see below), whose sum is σ = 100875894300. Its totient is φ = 22416865392.

The previous prime is 56042163481. The next prime is 56042163497. The reversal of 56042163490 is 9436124065.

It can be written as a sum of positive squares in 2 ways, for example, as 54409761081 + 1632402409 = 233259^2 + 40403^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (56042163497) 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 3 ways as a sum of consecutive naturals, for example, 2802108165 + ... + 2802108184.

Almost surely, 2^56042163490 is an apocalyptic number.

56042163490 is a deficient number, since it is larger than the sum of its proper divisors (44833730810).

56042163490 is a wasteful number, since it uses less digits than its factorization.

56042163490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5604216356.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 56042163490 in words is "fifty-six billion, forty-two million, one hundred sixty-three thousand, four hundred ninety".