56142538 has 8 divisors (see below), whose sum is σ = 84266532. Its totient is φ = 28053696.

The previous prime is 56142523. The next prime is 56142547. The reversal of 56142538 is 83524165.

56142538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 55308969 + 833569 = 7437^2 + 913^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4345 + ... + 11452.

Almost surely, 2^56142538 is an apocalyptic number.

56142538 is a deficient number, since it is larger than the sum of its proper divisors (28123994).

56142538 is a wasteful number, since it uses less digits than its factorization.

56142538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17576.

The product of its digits is 28800, while the sum is 34.

The square root of 56142538 is about 7492.8324417406. The cubic root of 56142538 is about 382.9105631868.

The spelling of 56142538 in words is "fifty-six million, one hundred forty-two thousand, five hundred thirty-eight".