56582138 has 4 divisors (see below), whose sum is σ = 84873210. Its totient is φ = 28291068.

The previous prime is 56582131. The next prime is 56582147. The reversal of 56582138 is 83128565.

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., 38031889 + 18550249 = 6167^2 + 4307^2 .

It is not an unprimeable number, because it can be changed into a prime (56582131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14145533 + ... + 14145536.

Almost surely, 2^56582138 is an apocalyptic number.

56582138 is a deficient number, since it is larger than the sum of its proper divisors (28291072).

56582138 is a wasteful number, since it uses less digits than its factorization.

56582138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28291071.

The product of its digits is 57600, while the sum is 38.

The square root of 56582138 is about 7522.1099433603. The cubic root of 56582138 is about 383.9073715020.

The spelling of 56582138 in words is "fifty-six million, five hundred eighty-two thousand, one hundred thirty-eight".