554303861 has 2 divisors, whose sum is σ = 554303862. Its totient is φ = 554303860.

The previous prime is 554303851. The next prime is 554303863. The reversal of 554303861 is 168303455.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 527574961 + 26728900 = 22969^2 + 5170^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-554303861 is a prime.

Together with 554303863, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_29059532 and since 554303861 and 29059532 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (554303863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277151930 + 277151931.

It is an arithmetic number, because the mean of its divisors is an integer number (277151931).

Almost surely, 2^554303861 is an apocalyptic number.

It is an amenable number.

554303861 is a deficient number, since it is larger than the sum of its proper divisors (1).

554303861 is an equidigital number, since it uses as much as digits as its factorization.

554303861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 554303861 is about 23543.6586154319. The cubic root of 554303861 is about 821.4528383476.

The spelling of 554303861 in words is "five hundred fifty-four million, three hundred three thousand, eight hundred sixty-one".