2155104501 has 36 divisors (see below), whose sum is σ = 3355328256. Its totient is φ = 1229233280.

The previous prime is 2155104493. The next prime is 2155104527. The reversal of 2155104501 is 1054015512.

It is not a de Polignac number, because 2155104501 - 2³ = 2155104493 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155104541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 94636 + ... + 115178.

Almost surely, 2^2155104501 is an apocalyptic number.

It is an amenable number.

2155104501 is a deficient number, since it is larger than the sum of its proper divisors (1200223755).

2155104501 is a wasteful number, since it uses less digits than its factorization.

2155104501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20602 (or 20574 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 2155104501 is about 46423.1030953339. The cubic root of 2155104501 is about 1291.6834981883.

The spelling of 2155104501 in words is "two billion, one hundred fifty-five million, one hundred four thousand, five hundred one".