2455521 has 8 divisors (see below), whose sum is σ = 3329760. Its totient is φ = 1609152.

The previous prime is 2455513. The next prime is 2455529. The reversal of 2455521 is 1255542.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2455513) and next prime (2455529).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2455521 - 2³ = 2455513 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2455491 and 2455500.

It is not an unprimeable number, because it can be changed into a prime (2455529) 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 7 ways as a sum of consecutive naturals, for example, 6760 + ... + 7113.

It is an arithmetic number, because the mean of its divisors is an integer number (416220).

2^2455521 is an apocalyptic number.

It is an amenable number.

2455521 is a deficient number, since it is larger than the sum of its proper divisors (874239).

2455521 is a wasteful number, since it uses less digits than its factorization.

2455521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13935.

The product of its digits is 2000, while the sum is 24.

The square root of 2455521 is about 1567.0102105602. The cubic root of 2455521 is about 134.9111624032.

The spelling of 2455521 in words is "two million, four hundred fifty-five thousand, five hundred twenty-one".