2209901925 has 96 divisors (see below), whose sum is σ = 4589706240. Its totient is φ = 911462400.

The previous prime is 2209901899. The next prime is 2209902017. The reversal of 2209901925 is 5291099022.

2209901925 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2209901925 - 2¹⁷ = 2209770853 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 801349 + ... + 804101.

It is an arithmetic number, because the mean of its divisors is an integer number (47809440).

Almost surely, 2^2209901925 is an apocalyptic number.

2209901925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2209901925 is an abundant number, since it is smaller than the sum of its proper divisors (2379804315).

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

2209901925 is a wasteful number, since it uses less digits than its factorization.

2209901925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2923 (or 2918 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 2209901925 is about 47009.5939676147. The cubic root of 2209901925 is about 1302.5397931902.

The spelling of 2209901925 in words is "two billion, two hundred nine million, nine hundred one thousand, nine hundred twenty-five".