5557813 has 2 divisors, whose sum is σ = 5557814. Its totient is φ = 5557812.

The previous prime is 5557787. The next prime is 5557817. The reversal of 5557813 is 3187555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5414929 + 142884 = 2327^2 + 378^2 .

It is a cyclic number.

It is not a de Polignac number, because 5557813 - 2⁵ = 5557781 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5557817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2778906 + 2778907.

It is an arithmetic number, because the mean of its divisors is an integer number (2778907).

Almost surely, 2^5557813 is an apocalyptic number.

It is an amenable number.

5557813 is a deficient number, since it is larger than the sum of its proper divisors (1).

5557813 is an equidigital number, since it uses as much as digits as its factorization.

5557813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21000, while the sum is 34.

The square root of 5557813 is about 2357.5014316008. The cubic root of 5557813 is about 177.1337472088.

The spelling of 5557813 in words is "five million, five hundred fifty-seven thousand, eight hundred thirteen".