2545925 has 6 divisors (see below), whose sum is σ = 3156978. Its totient is φ = 2036720.

The previous prime is 2545919. The next prime is 2545927. The reversal of 2545925 is 5295452.

It can be written as a sum of positive squares in 3 ways, for example, as 229441 + 2316484 = 479^2 + 1522^2 .

It is not a de Polignac number, because 2545925 - 2⁶ = 2545861 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2545891 and 2545900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545927) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50894 + ... + 50943.

It is an arithmetic number, because the mean of its divisors is an integer number (526163).

2^2545925 is an apocalyptic number.

2545925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2545925 is a deficient number, since it is larger than the sum of its proper divisors (611053).

2545925 is a wasteful number, since it uses less digits than its factorization.

2545925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101847 (or 101842 counting only the distinct ones).

The product of its digits is 18000, while the sum is 32.

The square root of 2545925 is about 1595.5955001190. The cubic root of 2545925 is about 136.5469074476.

The spelling of 2545925 in words is "two million, five hundred forty-five thousand, nine hundred twenty-five".