2532406021 has 2 divisors, whose sum is σ = 2532406022. Its totient is φ = 2532406020.

The previous prime is 2532405983. The next prime is 2532406043. The reversal of 2532406021 is 1206042352.

2532406021 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., 2528983521 + 3422500 = 50289^2 + 1850^2 .

It is a cyclic number.

It is not a de Polignac number, because 2532406021 - 2²⁷ = 2398188293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2532406321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1266203010 + 1266203011.

It is an arithmetic number, because the mean of its divisors is an integer number (1266203011).

Almost surely, 2^2532406021 is an apocalyptic number.

It is an amenable number.

2532406021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2532406021 is an equidigital number, since it uses as much as digits as its factorization.

2532406021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 2532406021 is about 50323.0168113956. The cubic root of 2532406021 is about 1363.0478826350.

Adding to 2532406021 its reverse (1206042352), we get a palindrome (3738448373).

The spelling of 2532406021 in words is "two billion, five hundred thirty-two million, four hundred six thousand, twenty-one".