2153925 has 24 divisors (see below), whose sum is σ = 3958080. Its totient is φ = 1148400.

The previous prime is 2153909. The next prime is 2153929. The reversal of 2153925 is 5293512.

2153925 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 2153925 - 2⁴ = 2153909 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153929) 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 23 ways as a sum of consecutive naturals, for example, 921 + ... + 2270.

It is an arithmetic number, because the mean of its divisors is an integer number (164920).

2^2153925 is an apocalyptic number.

2153925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2153925 is a deficient number, since it is larger than the sum of its proper divisors (1804155).

2153925 is a wasteful number, since it uses less digits than its factorization.

2153925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3210 (or 3199 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 2153925 is about 1467.6256334638. The cubic root of 2153925 is about 129.1447806600.

The spelling of 2153925 in words is "two million, one hundred fifty-three thousand, nine hundred twenty-five".