56421411 has 8 divisors (see below), whose sum is σ = 77261904. Its totient is φ = 36597600.

The previous prime is 56421403. The next prime is 56421413. The reversal of 56421411 is 11412465.

It is a happy number.

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

It is not a de Polignac number, because 56421411 - 2³ = 56421403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56421413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254040 + ... + 254261.

It is an arithmetic number, because the mean of its divisors is an integer number (9657738).

Almost surely, 2^56421411 is an apocalyptic number.

56421411 is a deficient number, since it is larger than the sum of its proper divisors (20840493).

56421411 is a wasteful number, since it uses less digits than its factorization.

56421411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508341.

The product of its digits is 960, while the sum is 24.

The square root of 56421411 is about 7511.4187075412. The cubic root of 56421411 is about 383.5435181712.

Adding to 56421411 its reverse (11412465), we get a palindrome (67833876).

The spelling of 56421411 in words is "fifty-six million, four hundred twenty-one thousand, four hundred eleven".