2520629 has 2 divisors, whose sum is σ = 2520630. Its totient is φ = 2520628.

The previous prime is 2520613. The next prime is 2520631. The reversal of 2520629 is 9260252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1965604 + 555025 = 1402^2 + 745^2 .

It is a cyclic number.

It is not a de Polignac number, because 2520629 - 2⁴ = 2520613 is a prime.

It is a Sophie Germain prime.

Together with 2520631, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2520598 and 2520607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2520649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260314 + 1260315.

It is an arithmetic number, because the mean of its divisors is an integer number (1260315).

2^2520629 is an apocalyptic number.

It is an amenable number.

2520629 is a deficient number, since it is larger than the sum of its proper divisors (1).

2520629 is an equidigital number, since it uses as much as digits as its factorization.

2520629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 2520629 is about 1587.6488906556. The cubic root of 2520629 is about 136.0931635305.

The spelling of 2520629 in words is "two million, five hundred twenty thousand, six hundred twenty-nine".