2503725 has 48 divisors (see below), whose sum is σ = 4999680. Its totient is φ = 1080000.

The previous prime is 2503717. The next prime is 2503729. The reversal of 2503725 is 5273052.

It is not a de Polignac number, because 2503725 - 2³ = 2503717 is a prime.

2503725 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2503695 and 2503704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2503729) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9850 + ... + 10100.

It is an arithmetic number, because the mean of its divisors is an integer number (104160).

2^2503725 is an apocalyptic number.

2503725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2503725 is a deficient number, since it is larger than the sum of its proper divisors (2495955).

2503725 is a wasteful number, since it uses less digits than its factorization.

2503725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290 (or 285 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 2503725 is about 1582.3163400534. The cubic root of 2503725 is about 135.7882554156.

Adding to 2503725 its reverse (5273052), we get a palindrome (7776777).

The spelling of 2503725 in words is "two million, five hundred three thousand, seven hundred twenty-five".