56134221 has 64 divisors (see below), whose sum is σ = 95800320. Its totient is φ = 28707840.

The previous prime is 56134181. The next prime is 56134231. The reversal of 56134221 is 12243165.

It is not a de Polignac number, because 56134221 - 2⁷ = 56134093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56134191 and 56134200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56134231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 313510 + ... + 313688.

It is an arithmetic number, because the mean of its divisors is an integer number (1496880).

Almost surely, 2^56134221 is an apocalyptic number.

56134221 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

56134221 is a deficient number, since it is larger than the sum of its proper divisors (39666099).

56134221 is a wasteful number, since it uses less digits than its factorization.

56134221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266.

The product of its digits is 1440, while the sum is 24.

The square root of 56134221 is about 7492.2774241215. The cubic root of 56134221 is about 382.8916540284.

Adding to 56134221 its reverse (12243165), we get a palindrome (68377386).

The spelling of 56134221 in words is "fifty-six million, one hundred thirty-four thousand, two hundred twenty-one".