56421895 has 8 divisors (see below), whose sum is σ = 71689104. Its totient is φ = 42482304.

The previous prime is 56421851. The next prime is 56421901. The reversal of 56421895 is 59812465.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56421895 - 2¹⁵ = 56389127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331809 + ... + 331978.

It is an arithmetic number, because the mean of its divisors is an integer number (8961138).

Almost surely, 2^56421895 is an apocalyptic number.

56421895 is a deficient number, since it is larger than the sum of its proper divisors (15267209).

56421895 is a wasteful number, since it uses less digits than its factorization.

56421895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663809.

The product of its digits is 86400, while the sum is 40.

The square root of 56421895 is about 7511.4509250876. The cubic root of 56421895 is about 383.5446148857.

The spelling of 56421895 in words is "fifty-six million, four hundred twenty-one thousand, eight hundred ninety-five".