2475621 has 12 divisors (see below), whose sum is σ = 3663660. Its totient is φ = 1609920.

The previous prime is 2475593. The next prime is 2475647. The reversal of 2475621 is 1265742.

2475621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 756900 + 1718721 = 870^2 + 1311^2 .

It is not a de Polignac number, because 2475621 - 2⁷ = 2475493 is a prime.

It is a super-3 number, since 3×2475621³ = 45517010333996724183, which contains 333 as substring. Note that it is a super-d number also for d = 2.

2475621 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2475721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2986 + ... + 3723.

It is an arithmetic number, because the mean of its divisors is an integer number (305305).

2^2475621 is an apocalyptic number.

It is an amenable number.

2475621 is a deficient number, since it is larger than the sum of its proper divisors (1188039).

2475621 is a wasteful number, since it uses less digits than its factorization.

2475621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6756 (or 6753 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 2475621 is about 1573.4106266325. The cubic root of 2475621 is about 135.2782737405.

The spelling of 2475621 in words is "two million, four hundred seventy-five thousand, six hundred twenty-one".