355665049 has 2 divisors, whose sum is σ = 355665050. Its totient is φ = 355665048.

The previous prime is 355664989. The next prime is 355665059. The reversal of 355665049 is 940566553.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189255049 + 166410000 = 13757^2 + 12900^2 .

It is a cyclic number.

It is not a de Polignac number, because 355665049 - 2¹⁵ = 355632281 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 355664996 and 355665014.

It is not a weakly prime, because it can be changed into another prime (355665059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177832524 + 177832525.

It is an arithmetic number, because the mean of its divisors is an integer number (177832525).

Almost surely, 2^355665049 is an apocalyptic number.

It is an amenable number.

355665049 is a deficient number, since it is larger than the sum of its proper divisors (1).

355665049 is an equidigital number, since it uses as much as digits as its factorization.

355665049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486000, while the sum is 43.

The square root of 355665049 is about 18859.0839915411. The cubic root of 355665049 is about 708.5117600000.

The spelling of 355665049 in words is "three hundred fifty-five million, six hundred sixty-five thousand, forty-nine".