554426261 has 2 divisors, whose sum is σ = 554426262. Its totient is φ = 554426260.

The previous prime is 554426239. The next prime is 554426281. The reversal of 554426261 is 162624455.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 529276036 + 25150225 = 23006^2 + 5015^2 .

It is a cyclic number.

It is not a de Polignac number, because 554426261 - 2¹⁰ = 554425237 is a prime.

It is equal to p_29065580 and since 554426261 and 29065580 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 (554426221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277213130 + 277213131.

It is an arithmetic number, because the mean of its divisors is an integer number (277213131).

Almost surely, 2^554426261 is an apocalyptic number.

It is an amenable number.

554426261 is a deficient number, since it is larger than the sum of its proper divisors (1).

554426261 is an equidigital number, since it uses as much as digits as its factorization.

554426261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57600, while the sum is 35.

The square root of 554426261 is about 23546.2578980185. The cubic root of 554426261 is about 821.5132976220.

The spelling of 554426261 in words is "five hundred fifty-four million, four hundred twenty-six thousand, two hundred sixty-one".