56123445 has 32 divisors (see below), whose sum is σ = 102972672. Its totient is φ = 25569792.

The previous prime is 56123437. The next prime is 56123461. The reversal of 56123445 is 54432165.

It is not a de Polignac number, because 56123445 - 2³ = 56123437 is a prime.

It is a Curzon number.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 38449 + ... + 39881.

It is an arithmetic number, because the mean of its divisors is an integer number (3217896).

Almost surely, 2^56123445 is an apocalyptic number.

It is an amenable number.

56123445 is a deficient number, since it is larger than the sum of its proper divisors (46849227).

56123445 is a wasteful number, since it uses less digits than its factorization.

56123445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821.

The product of its digits is 14400, while the sum is 30.

The square root of 56123445 is about 7491.5582491228. The cubic root of 56123445 is about 382.8671514200.

The spelling of 56123445 in words is "fifty-six million, one hundred twenty-three thousand, four hundred forty-five".