56206538 has 4 divisors (see below), whose sum is σ = 84309810. Its totient is φ = 28103268.

The previous prime is 56206523. The next prime is 56206543. The reversal of 56206538 is 83560265.

56206538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 55011889 + 1194649 = 7417^2 + 1093^2 .

It is a junction number, because it is equal to n+sod(n) for n = 56206498 and 56206507.

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 as a sum of consecutive naturals, namely, 14051633 + ... + 14051636.

Almost surely, 2^56206538 is an apocalyptic number.

56206538 is a deficient number, since it is larger than the sum of its proper divisors (28103272).

56206538 is a wasteful number, since it uses less digits than its factorization.

56206538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28103271.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 56206538 is about 7497.1019734295. The cubic root of 56206538 is about 383.0560082794.

Subtracting from 56206538 its sum of digits (35), we obtain a triangular number (56206503 = T₁₀₆₀₂).

The spelling of 56206538 in words is "fifty-six million, two hundred six thousand, five hundred thirty-eight".