2475521 has 4 divisors (see below), whose sum is σ = 2481600. Its totient is φ = 2469444.

The previous prime is 2475509. The next prime is 2475547. The reversal of 2475521 is 1255742.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2475521 - 2¹⁰ = 2474497 is a prime.

It is a super-2 number, since 2×2475521² = 12256408442882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2475721) 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, 2381 + ... + 3258.

It is an arithmetic number, because the mean of its divisors is an integer number (620400).

2^2475521 is an apocalyptic number.

It is an amenable number.

2475521 is a deficient number, since it is larger than the sum of its proper divisors (6079).

2475521 is an equidigital number, since it uses as much as digits as its factorization.

2475521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6078.

The product of its digits is 2800, while the sum is 26.

The square root of 2475521 is about 1573.3788482117. The cubic root of 2475521 is about 135.2764522434.

The spelling of 2475521 in words is "two million, four hundred seventy-five thousand, five hundred twenty-one".