55801085103 has 12 divisors (see below), whose sum is σ = 80687600448. Its totient is φ = 37161015840.

The previous prime is 55801085101. The next prime is 55801085113. The reversal of 55801085103 is 30158010855.

55801085103 is a `hidden beast` number, since 55 + 80 + 10 + 8 + 510 + 3 = 666.

It is not a de Polignac number, because 55801085103 - 2¹ = 55801085101 is a prime.

It is a super-2 number, since 2×55801085103² (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 (55801085101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3300063 + ... + 3316928.

It is an arithmetic number, because the mean of its divisors is an integer number (6723966704).

Almost surely, 2^55801085103 is an apocalyptic number.

55801085103 is a deficient number, since it is larger than the sum of its proper divisors (24886515345).

55801085103 is a wasteful number, since it uses less digits than its factorization.

55801085103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6617934 (or 6617931 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 36.

Adding to 55801085103 its reverse (30158010855), we get a palindrome (85959095958).

The spelling of 55801085103 in words is "fifty-five billion, eight hundred one million, eighty-five thousand, one hundred three".