2506417 has 4 divisors (see below), whose sum is σ = 2574196. Its totient is φ = 2438640.

The previous prime is 2506411. The next prime is 2506421. The reversal of 2506417 is 7146052.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1934881 + 571536 = 1391^2 + 756^2 .

It is a cyclic number.

It is not a de Polignac number, because 2506417 - 2³ = 2506409 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 5⁵ + 0 + 6⁸ + 4 + 1 + 7⁷ .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2506391 and 2506400.

It is not an unprimeable number, because it can be changed into a prime (2506411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33834 + ... + 33907.

It is an arithmetic number, because the mean of its divisors is an integer number (643549).

2^2506417 is an apocalyptic number.

It is an amenable number.

2506417 is a deficient number, since it is larger than the sum of its proper divisors (67779).

2506417 is an equidigital number, since it uses as much as digits as its factorization.

2506417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67778.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 2506417 is about 1583.1667631680. The cubic root of 2506417 is about 135.8369044022.

The spelling of 2506417 in words is "two million, five hundred six thousand, four hundred seventeen".