2125725 has 24 divisors (see below), whose sum is σ = 4017600. Its totient is φ = 971520.

The previous prime is 2125703. The next prime is 2125733. The reversal of 2125725 is 5275212.

It is not a de Polignac number, because 2125725 - 2⁵ = 2125693 is a prime.

It is a Curzon number.

2125725 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2125695 and 2125704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1500 + ... + 2549.

It is an arithmetic number, because the mean of its divisors is an integer number (167400).

2^2125725 is an apocalyptic number.

2125725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2125725 is a deficient number, since it is larger than the sum of its proper divisors (1891875).

2125725 is a wasteful number, since it uses less digits than its factorization.

2125725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4069 (or 4064 counting only the distinct ones).

The product of its digits is 1400, while the sum is 24.

The square root of 2125725 is about 1457.9866254531. The cubic root of 2125725 is about 128.5786988834.

It can be divided in two parts, 2125 and 725, that added together give a triangular number (2850 = T₇₅).

The spelling of 2125725 in words is "two million, one hundred twenty-five thousand, seven hundred twenty-five".