55861053013 has 4 divisors (see below), whose sum is σ = 55892384608. Its totient is φ = 55829721420.

The previous prime is 55861053011. The next prime is 55861053029. The reversal of 55861053013 is 31035016855.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55861053013 - 2¹ = 55861053011 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 (55861053011) 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 3 ways as a sum of consecutive naturals, for example, 15663123 + ... + 15666688.

It is an arithmetic number, because the mean of its divisors is an integer number (13973096152).

Almost surely, 2^55861053013 is an apocalyptic number.

It is an amenable number.

55861053013 is a deficient number, since it is larger than the sum of its proper divisors (31331595).

55861053013 is a wasteful number, since it uses less digits than its factorization.

55861053013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31331594.

The product of its (nonzero) digits is 54000, while the sum is 37.

Adding to 55861053013 its reverse (31035016855), we get a palindrome (86896069868).

The spelling of 55861053013 in words is "fifty-five billion, eight hundred sixty-one million, fifty-three thousand, thirteen".