2172941925 has 96 divisors (see below), whose sum is σ = 4493712384. Its totient is φ = 900096000.

The previous prime is 2172941893. The next prime is 2172941959. The reversal of 2172941925 is 5291492712.

It is not a de Polignac number, because 2172941925 - 2⁵ = 2172941893 is a prime.

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 3389605 + ... + 3390245.

It is an arithmetic number, because the mean of its divisors is an integer number (46809504).

Almost surely, 2^2172941925 is an apocalyptic number.

2172941925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2172941925 is an abundant number, since it is smaller than the sum of its proper divisors (2320770459).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2172941925 is a wasteful number, since it uses less digits than its factorization.

2172941925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259 (or 1254 counting only the distinct ones).

The product of its digits is 90720, while the sum is 42.

The square root of 2172941925 is about 46614.8251632461. The cubic root of 2172941925 is about 1295.2373908260.

The spelling of 2172941925 in words is "two billion, one hundred seventy-two million, nine hundred forty-one thousand, nine hundred twenty-five".