56144642 has 8 divisors (see below), whose sum is σ = 89170956. Its totient is φ = 26420992.

The previous prime is 56144623. The next prime is 56144687. The reversal of 56144642 is 24644165.

It can be written as a sum of positive squares in 2 ways, for example, as 55368481 + 776161 = 7441^2 + 881^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 56144599 and 56144608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 825623 + ... + 825690.

Almost surely, 2^56144642 is an apocalyptic number.

56144642 is a deficient number, since it is larger than the sum of its proper divisors (33026314).

56144642 is a wasteful number, since it uses less digits than its factorization.

56144642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1651332.

The product of its digits is 23040, while the sum is 32.

The square root of 56144642 is about 7492.9728412693. The cubic root of 56144642 is about 382.9153464509.

The spelling of 56144642 in words is "fifty-six million, one hundred forty-four thousand, six hundred forty-two".