2550013421 has 2 divisors, whose sum is σ = 2550013422. Its totient is φ = 2550013420.

The previous prime is 2550013387. The next prime is 2550013423. The reversal of 2550013421 is 1243100552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2548836196 + 1177225 = 50486^2 + 1085^2 .

It is a cyclic number.

It is not a de Polignac number, because 2550013421 - 2¹⁰ = 2550012397 is a prime.

Together with 2550013423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2550013423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275006710 + 1275006711.

It is an arithmetic number, because the mean of its divisors is an integer number (1275006711).

Almost surely, 2^2550013421 is an apocalyptic number.

It is an amenable number.

2550013421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2550013421 is an equidigital number, since it uses as much as digits as its factorization.

2550013421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 2550013421 is about 50497.6575793373. The cubic root of 2550013421 is about 1366.1996048708.

Adding to 2550013421 its reverse (1243100552), we get a palindrome (3793113973).

The spelling of 2550013421 in words is "two billion, five hundred fifty million, thirteen thousand, four hundred twenty-one".