55055550001 has 8 divisors (see below), whose sum is σ = 55914553640. Its totient is φ = 54202981248.

The previous prime is 55055549987. The next prime is 55055550019. The reversal of 55055550001 is 10005555055.

It can be written as a sum of positive squares in 4 ways, for example, as 19613722401 + 35441827600 = 140049^2 + 188260^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55055550001 - 2¹³ = 55055541809 is a prime.

It is a super-2 number, since 2×55055550001² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55055550031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1591476 + ... + 1625701.

It is an arithmetic number, because the mean of its divisors is an integer number (6989319205).

Almost surely, 2^55055550001 is an apocalyptic number.

It is an amenable number.

55055550001 is a deficient number, since it is larger than the sum of its proper divisors (859003639).

55055550001 is a wasteful number, since it uses less digits than its factorization.

55055550001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3217443.

The product of its (nonzero) digits is 15625, while the sum is 31.

The spelling of 55055550001 in words is "fifty-five billion, fifty-five million, five hundred fifty thousand, one".