2517825 has 24 divisors (see below), whose sum is σ = 4240800. Its totient is φ = 1317760.

The previous prime is 2517821. The next prime is 2517847. The reversal of 2517825 is 5287152.

It is not a de Polignac number, because 2517825 - 2² = 2517821 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2517792 and 2517801.

It is not an unprimeable number, because it can be changed into a prime (2517821) 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, 4141 + ... + 4709.

It is an arithmetic number, because the mean of its divisors is an integer number (176700).

2^2517825 is an apocalyptic number.

2517825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2517825 is a deficient number, since it is larger than the sum of its proper divisors (1722975).

2517825 is a wasteful number, since it uses less digits than its factorization.

2517825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641 (or 636 counting only the distinct ones).

The product of its digits is 5600, while the sum is 30.

The square root of 2517825 is about 1586.7655781495. The cubic root of 2517825 is about 136.0426805201.

Subtracting from 2517825 its product of digits (5600), we obtain a square (2512225 = 1585²).

The spelling of 2517825 in words is "two million, five hundred seventeen thousand, eight hundred twenty-five".