55010321013 has 16 divisors (see below), whose sum is σ = 75138186816. Its totient is φ = 35779941120.

The previous prime is 55010321011. The next prime is 55010321039. The reversal of 55010321013 is 31012301055.

It is not a de Polignac number, because 55010321013 - 2¹ = 55010321011 is a prime.

It is a super-2 number, since 2×55010321013² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55010321011) 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, 128370 + ... + 355667.

It is an arithmetic number, because the mean of its divisors is an integer number (4696136676).

Almost surely, 2^55010321013 is an apocalyptic number.

It is an amenable number.

55010321013 is a deficient number, since it is larger than the sum of its proper divisors (20127865803).

55010321013 is a wasteful number, since it uses less digits than its factorization.

55010321013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484964.

The product of its (nonzero) digits is 450, while the sum is 21.

Adding to 55010321013 its reverse (31012301055), we get a palindrome (86022622068).

The spelling of 55010321013 in words is "fifty-five billion, ten million, three hundred twenty-one thousand, thirteen".