2630521 has 2 divisors, whose sum is σ = 2630522. Its totient is φ = 2630520.

The previous prime is 2630501. The next prime is 2630539. The reversal of 2630521 is 1250362.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1590121 + 1040400 = 1261^2 + 1020^2 .

It is a cyclic number.

It is not a de Polignac number, because 2630521 - 2⁵ = 2630489 is a prime.

It is not a weakly prime, because it can be changed into another prime (2630501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1315260 + 1315261.

It is an arithmetic number, because the mean of its divisors is an integer number (1315261).

2^2630521 is an apocalyptic number.

It is an amenable number.

2630521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2630521 is an equidigital number, since it uses as much as digits as its factorization.

2630521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 2630521 is about 1621.8880972496. Note that the first 3 decimals coincide. The cubic root of 2630521 is about 138.0428523364.

Adding to 2630521 its reverse (1250362), we get a palindrome (3880883).

The spelling of 2630521 in words is "two million, six hundred thirty thousand, five hundred twenty-one".