2654521 has 4 divisors (see below), whose sum is σ = 2658292. Its totient is φ = 2650752.

The previous prime is 2654507. The next prime is 2654539. The reversal of 2654521 is 1254562.

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 511225 + 2143296 = 715^2 + 1464^2 .

It is a cyclic number.

It is not a de Polignac number, because 2654521 - 2⁵ = 2654489 is a prime.

It is a Duffinian number.

2654521 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2654501) 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, 480 + ... + 2353.

It is an arithmetic number, because the mean of its divisors is an integer number (664573).

2^2654521 is an apocalyptic number.

It is an amenable number.

2654521 is a deficient number, since it is larger than the sum of its proper divisors (3771).

2654521 is an equidigital number, since it uses as much as digits as its factorization.

2654521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3770.

The product of its digits is 2400, while the sum is 25.

The square root of 2654521 is about 1629.2700819692. The cubic root of 2654521 is about 138.4614010524.

The spelling of 2654521 in words is "two million, six hundred fifty-four thousand, five hundred twenty-one".