56450887 has 4 divisors (see below), whose sum is σ = 56476960. Its totient is φ = 56424816.

The previous prime is 56450879. The next prime is 56450909. The reversal of 56450887 is 78805465.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78805465 = 5 ⋅15761093.

It is a cyclic number.

It is not a de Polignac number, because 56450887 - 2³ = 56450879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56450837) 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 3 ways as a sum of consecutive naturals, for example, 9462 + ... + 14227.

It is an arithmetic number, because the mean of its divisors is an integer number (14119240).

Almost surely, 2^56450887 is an apocalyptic number.

56450887 is a deficient number, since it is larger than the sum of its proper divisors (26073).

56450887 is a wasteful number, since it uses less digits than its factorization.

56450887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26072.

The product of its (nonzero) digits is 268800, while the sum is 43.

The square root of 56450887 is about 7513.3805307598. The cubic root of 56450887 is about 383.6102975515.

The spelling of 56450887 in words is "fifty-six million, four hundred fifty thousand, eight hundred eighty-seven".