56554511642 has 4 divisors (see below), whose sum is σ = 84831767466. Its totient is φ = 28277255820.

The previous prime is 56554511641. The next prime is 56554511659. The reversal of 56554511642 is 24611545565.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 44133186241 + 12421325401 = 210079^2 + 111451^2 .

It is a super-2 number, since 2×56554511642² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56554511593 and 56554511602.

It is not an unprimeable number, because it can be changed into a prime (56554511641) 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 as a sum of consecutive naturals, namely, 14138627909 + ... + 14138627912.

Almost surely, 2^56554511642 is an apocalyptic number.

56554511642 is a deficient number, since it is larger than the sum of its proper divisors (28277255824).

56554511642 is a wasteful number, since it uses less digits than its factorization.

56554511642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28277255823.

The product of its digits is 720000, while the sum is 44.

The spelling of 56554511642 in words is "fifty-six billion, five hundred fifty-four million, five hundred eleven thousand, six hundred forty-two".