56821461 has 8 divisors (see below), whose sum is σ = 76721280. Its totient is φ = 37401312.

The previous prime is 56821433. The next prime is 56821483. The reversal of 56821461 is 16412865.

56821461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 56821461 - 2⁹ = 56820949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56821421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119640 + ... + 120113.

It is an arithmetic number, because the mean of its divisors is an integer number (9590160).

Almost surely, 2^56821461 is an apocalyptic number.

It is an amenable number.

56821461 is a deficient number, since it is larger than the sum of its proper divisors (19899819).

56821461 is a wasteful number, since it uses less digits than its factorization.

56821461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239835.

The product of its digits is 11520, while the sum is 33.

The square root of 56821461 is about 7538.0011276200. The cubic root of 56821461 is about 384.4478755867.

The spelling of 56821461 in words is "fifty-six million, eight hundred twenty-one thousand, four hundred sixty-one".