56054421013 has 16 divisors (see below), whose sum is σ = 57562314880. Its totient is φ = 54569604096.

The previous prime is 56054420921. The next prime is 56054421023. The reversal of 56054421013 is 31012445065.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 56054421013 - 2²¹ = 56052323861 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 (56054421023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2673256 + ... + 2694142.

It is an arithmetic number, because the mean of its divisors is an integer number (3597644680).

Almost surely, 2^56054421013 is an apocalyptic number.

It is an amenable number.

56054421013 is a deficient number, since it is larger than the sum of its proper divisors (1507893867).

56054421013 is a wasteful number, since it uses less digits than its factorization.

56054421013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21436.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 56054421013 its reverse (31012445065), we get a palindrome (87066866078).

The spelling of 56054421013 in words is "fifty-six billion, fifty-four million, four hundred twenty-one thousand, thirteen".