2553944461 has 2 divisors, whose sum is σ = 2553944462. Its totient is φ = 2553944460.

The previous prime is 2553944453. The next prime is 2553944501. The reversal of 2553944461 is 1644493552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2553381961 + 562500 = 50531^2 + 750^2 .

It is a cyclic number.

It is not a de Polignac number, because 2553944461 - 2³ = 2553944453 is a prime.

It is a super-3 number, since 3×2553944461³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2553944441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1276972230 + 1276972231.

It is an arithmetic number, because the mean of its divisors is an integer number (1276972231).

Almost surely, 2^2553944461 is an apocalyptic number.

It is an amenable number.

2553944461 is a deficient number, since it is larger than the sum of its proper divisors (1).

2553944461 is an equidigital number, since it uses as much as digits as its factorization.

2553944461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518400, while the sum is 43.

The square root of 2553944461 is about 50536.5655837434. The cubic root of 2553944461 is about 1366.9012780319.

The spelling of 2553944461 in words is "two billion, five hundred fifty-three million, nine hundred forty-four thousand, four hundred sixty-one".