557621741 has 2 divisors, whose sum is σ = 557621742. Its totient is φ = 557621740.

The previous prime is 557621693. The next prime is 557621749. The reversal of 557621741 is 147126755.

557621741 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 543589225 + 14032516 = 23315^2 + 3746^2 .

It is a cyclic number.

It is not a de Polignac number, because 557621741 - 2¹⁴ = 557605357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 557621695 and 557621704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (557621749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278810870 + 278810871.

It is an arithmetic number, because the mean of its divisors is an integer number (278810871).

Almost surely, 2^557621741 is an apocalyptic number.

It is an amenable number.

557621741 is a deficient number, since it is larger than the sum of its proper divisors (1).

557621741 is an equidigital number, since it uses as much as digits as its factorization.

557621741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58800, while the sum is 38.

The square root of 557621741 is about 23614.0157745353. The cubic root of 557621741 is about 823.0885609184.

The spelling of 557621741 in words is "five hundred fifty-seven million, six hundred twenty-one thousand, seven hundred forty-one".