2956521 has 16 divisors (see below), whose sum is σ = 4320000. Its totient is φ = 1790208.

The previous prime is 2956493. The next prime is 2956523. The reversal of 2956521 is 1256592.

2956521 = 409² + 410² + ... + 425².

It is a happy number.

It is not a de Polignac number, because 2956521 - 2¹⁰ = 2955497 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2956523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 480 + ... + 2478.

It is an arithmetic number, because the mean of its divisors is an integer number (270000).

2^2956521 is an apocalyptic number.

It is an amenable number.

2956521 is a deficient number, since it is larger than the sum of its proper divisors (1363479).

2956521 is a wasteful number, since it uses less digits than its factorization.

2956521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2048.

The product of its digits is 5400, while the sum is 30.

The square root of 2956521 is about 1719.4536923104. The cubic root of 2956521 is about 143.5248128938.

The spelling of 2956521 in words is "two million, nine hundred fifty-six thousand, five hundred twenty-one".