2552988421 has 2 divisors, whose sum is σ = 2552988422. Its totient is φ = 2552988420.

The previous prime is 2552988401. The next prime is 2552988443. The reversal of 2552988421 is 1248892552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1594404900 + 958583521 = 39930^2 + 30961^2 .

It is a cyclic number.

It is not a de Polignac number, because 2552988421 - 2²¹ = 2550891269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2552988401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1276494210 + 1276494211.

It is an arithmetic number, because the mean of its divisors is an integer number (1276494211).

Almost surely, 2^2552988421 is an apocalyptic number.

It is an amenable number.

2552988421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2552988421 is an equidigital number, since it uses as much as digits as its factorization.

2552988421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 460800, while the sum is 46.

The square root of 2552988421 is about 50527.1058047064. The cubic root of 2552988421 is about 1366.7306954403.

The spelling of 2552988421 in words is "two billion, five hundred fifty-two million, nine hundred eighty-eight thousand, four hundred twenty-one".