56959421 has 4 divisors (see below), whose sum is σ = 57893244. Its totient is φ = 56025600.

The previous prime is 56959387. The next prime is 56959423. The reversal of 56959421 is 12495965.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12495965 = 5 ⋅2499193.

It can be written as a sum of positive squares in 2 ways, for example, as 19272100 + 37687321 = 4390^2 + 6139^2 .

It is a cyclic number.

It is not a de Polignac number, because 56959421 - 2²² = 52765117 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 (56959423) 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, 466820 + ... + 466941.

It is an arithmetic number, because the mean of its divisors is an integer number (14473311).

Almost surely, 2^56959421 is an apocalyptic number.

It is an amenable number.

56959421 is a deficient number, since it is larger than the sum of its proper divisors (933823).

56959421 is an equidigital number, since it uses as much as digits as its factorization.

56959421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933822.

The product of its digits is 97200, while the sum is 41.

The square root of 56959421 is about 7547.1465468745. The cubic root of 56959421 is about 384.7587649397.

The spelling of 56959421 in words is "fifty-six million, nine hundred fifty-nine thousand, four hundred twenty-one".