2513725 has 6 divisors (see below), whose sum is σ = 3117050. Its totient is φ = 2010960.

The previous prime is 2513723. The next prime is 2513729. The reversal of 2513725 is 5273152.

It can be written as a sum of positive squares in 3 ways, for example, as 70756 + 2442969 = 266^2 + 1563^2 .

It is not a de Polignac number, because 2513725 - 2¹ = 2513723 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 100549 = 2513725 / (2 + 5 + 1 + 3 + 7 + 2 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 2513725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2513723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50250 + ... + 50299.

2^2513725 is an apocalyptic number.

2513725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2513725 is a deficient number, since it is larger than the sum of its proper divisors (603325).

2513725 is a wasteful number, since it uses less digits than its factorization.

2513725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100559 (or 100554 counting only the distinct ones).

The product of its digits is 2100, while the sum is 25.

The square root of 2513725 is about 1585.4731155084. The cubic root of 2513725 is about 135.9687969072.

Adding to 2513725 its reverse (5273152), we get a palindrome (7786877).

The spelling of 2513725 in words is "two million, five hundred thirteen thousand, seven hundred twenty-five".