2552003021 has 2 divisors, whose sum is σ = 2552003022. Its totient is φ = 2552003020.

The previous prime is 2552003017. The next prime is 2552003023. The reversal of 2552003021 is 1203002552.

2552003021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1627234921 + 924768100 = 40339^2 + 30410^2 .

It is a cyclic number.

It is not a de Polignac number, because 2552003021 - 2² = 2552003017 is a prime.

Together with 2552003023, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2552002984 and 2552003002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2552003023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1276001510 + 1276001511.

It is an arithmetic number, because the mean of its divisors is an integer number (1276001511).

Almost surely, 2^2552003021 is an apocalyptic number.

It is an amenable number.

2552003021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2552003021 is an equidigital number, since it uses as much as digits as its factorization.

2552003021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 2552003021 is about 50517.3536618853. The cubic root of 2552003021 is about 1366.5548296811.

Adding to 2552003021 its reverse (1203002552), we get a palindrome (3755005573).

The spelling of 2552003021 in words is "two billion, five hundred fifty-two million, three thousand, twenty-one".