56936447 has 4 divisors (see below), whose sum is σ = 56955720. Its totient is φ = 56917176.

The previous prime is 56936441. The next prime is 56936449. The reversal of 56936447 is 74463965.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74463965 = 5 ⋅14892793.

It is a cyclic number.

It is not a de Polignac number, because 56936447 - 2¹⁰ = 56935423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56936398 and 56936407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56936441) 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, 4172 + ... + 11457.

It is an arithmetic number, because the mean of its divisors is an integer number (14238930).

Almost surely, 2^56936447 is an apocalyptic number.

56936447 is a deficient number, since it is larger than the sum of its proper divisors (19273).

56936447 is a wasteful number, since it uses less digits than its factorization.

56936447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19272.

The product of its digits is 544320, while the sum is 44.

The square root of 56936447 is about 7545.6243611778. The cubic root of 56936447 is about 384.7070284788.

The spelling of 56936447 in words is "fifty-six million, nine hundred thirty-six thousand, four hundred forty-seven".