2120025 has 24 divisors (see below), whose sum is σ = 3660480. Its totient is φ = 1080640.

The previous prime is 2120021. The next prime is 2120051. The reversal of 2120025 is 5200212.

It is not a de Polignac number, because 2120025 - 2² = 2120021 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2120021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1111 + ... + 2339.

It is an arithmetic number, because the mean of its divisors is an integer number (152520).

2^2120025 is an apocalyptic number.

2120025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2120025 is a deficient number, since it is larger than the sum of its proper divisors (1540455).

2120025 is a wasteful number, since it uses less digits than its factorization.

2120025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265 (or 1260 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 2120025 is about 1456.0305628660. The cubic root of 2120025 is about 128.4636707345.

Adding to 2120025 its reverse (5200212), we get a palindrome (7320237).

The spelling of 2120025 in words is "two million, one hundred twenty thousand, twenty-five".