56423215 has 4 divisors (see below), whose sum is σ = 67707864. Its totient is φ = 45138568.

The previous prime is 56423201. The next prime is 56423239. The reversal of 56423215 is 51232465.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51232465 = 5 ⋅10246493.

It is a cyclic number.

It is not a de Polignac number, because 56423215 - 2¹⁵ = 56390447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5642317 + ... + 5642326.

It is an arithmetic number, because the mean of its divisors is an integer number (16926966).

Almost surely, 2^56423215 is an apocalyptic number.

56423215 is a deficient number, since it is larger than the sum of its proper divisors (11284649).

56423215 is a wasteful number, since it uses less digits than its factorization.

56423215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11284648.

The product of its digits is 7200, while the sum is 28.

The square root of 56423215 is about 7511.5387904210. The cubic root of 56423215 is about 383.5476058932.

The spelling of 56423215 in words is "fifty-six million, four hundred twenty-three thousand, two hundred fifteen".