56442429 has 6 divisors (see below), whose sum is σ = 81527966. Its totient is φ = 37628280.

The previous prime is 56442401. The next prime is 56442469. The reversal of 56442429 is 92424465.

56442429 is a `hidden beast` number, since 5 + 644 + 2 + 4 + 2 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 50552100 + 5890329 = 7110^2 + 2427^2 .

It is not a de Polignac number, because 56442429 - 2⁷ = 56442301 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56442393 and 56442402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56442469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3135682 + ... + 3135699.

Almost surely, 2^56442429 is an apocalyptic number.

It is an amenable number.

56442429 is a deficient number, since it is larger than the sum of its proper divisors (25085537).

56442429 is a wasteful number, since it uses less digits than its factorization.

56442429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6271387 (or 6271384 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 56442429 is about 7512.8176471947. The cubic root of 56442429 is about 383.5911379000.

It can be divided in two parts, 564424 and 29, that added together give a triangular number (564453 = T₁₀₆₂).

The spelling of 56442429 in words is "fifty-six million, four hundred forty-two thousand, four hundred twenty-nine".