155000055001 has 8 divisors (see below), whose sum is σ = 169106544000. Its totient is φ = 140896161840.

The previous prime is 155000054983. The next prime is 155000055013. The reversal of 155000055001 is 100550000551.

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 155000055001 - 2²³ = 154991666393 is a prime.

It is a super-2 number, since 2×155000055001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155000055061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 523041 + ... + 763918.

It is an arithmetic number, because the mean of its divisors is an integer number (21138318000).

Almost surely, 2^155000055001 is an apocalyptic number.

155000055001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

155000055001 is a deficient number, since it is larger than the sum of its proper divisors (14106488999).

155000055001 is a wasteful number, since it uses less digits than its factorization.

155000055001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297919.

The product of its (nonzero) digits is 625, while the sum is 22.

Adding to 155000055001 its reverse (100550000551), we get a palindrome (255550055552).

The spelling of 155000055001 in words is "one hundred fifty-five billion, fifty-five thousand, one".