55115700201 has 6 divisors (see below), whose sum is σ = 79611566970. Its totient is φ = 36743800128.

The previous prime is 55115700173. The next prime is 55115700217. The reversal of 55115700201 is 10200751155.

It can be written as a sum of positive squares in only one way, i.e., 38306318400 + 16809381801 = 195720^2 + 129651^2 .

It is not a de Polignac number, because 55115700201 - 2²³ = 55107311593 is a prime.

It is a super-2 number, since 2×55115700201² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55115200201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3061983336 + ... + 3061983353.

It is an arithmetic number, because the mean of its divisors is an integer number (13268594495).

Almost surely, 2^55115700201 is an apocalyptic number.

It is an amenable number.

55115700201 is a deficient number, since it is larger than the sum of its proper divisors (24495866769).

55115700201 is a wasteful number, since it uses less digits than its factorization.

55115700201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6123966695 (or 6123966692 counting only the distinct ones).

The product of its (nonzero) digits is 1750, while the sum is 27.

The spelling of 55115700201 in words is "fifty-five billion, one hundred fifteen million, seven hundred thousand, two hundred one".