2155104525 has 72 divisors (see below), whose sum is σ = 4246228224. Its totient is φ = 961094400.

The previous prime is 2155104493. The next prime is 2155104527. The reversal of 2155104525 is 5254015512.

It is not a de Polignac number, because 2155104525 - 2⁵ = 2155104493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2155104492 and 2155104501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155104527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 143524 + ... + 157826.

It is an arithmetic number, because the mean of its divisors is an integer number (58975392).

Almost surely, 2^2155104525 is an apocalyptic number.

2155104525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2155104525 is a deficient number, since it is larger than the sum of its proper divisors (2091123699).

2155104525 is a wasteful number, since it uses less digits than its factorization.

2155104525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14371 (or 14359 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 30.

The square root of 2155104525 is about 46423.1033538259. The cubic root of 2155104525 is about 1291.6835029832.

The spelling of 2155104525 in words is "two billion, one hundred fifty-five million, one hundred four thousand, five hundred twenty-five".