56009437 has 4 divisors (see below), whose sum is σ = 61101216. Its totient is φ = 50917660.

The previous prime is 56009423. The next prime is 56009461. The reversal of 56009437 is 73490065.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56009437 - 2⁷ = 56009309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56009417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2545873 + ... + 2545894.

It is an arithmetic number, because the mean of its divisors is an integer number (15275304).

Almost surely, 2^56009437 is an apocalyptic number.

It is an amenable number.

56009437 is a deficient number, since it is larger than the sum of its proper divisors (5091779).

56009437 is a wasteful number, since it uses less digits than its factorization.

56009437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5091778.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 56009437 is about 7483.9452830710. The cubic root of 56009437 is about 382.6077262183.

The spelling of 56009437 in words is "fifty-six million, nine thousand, four hundred thirty-seven".