505550280541 has 2 divisors, whose sum is σ = 505550280542. Its totient is φ = 505550280540.

The previous prime is 505550280503. The next prime is 505550280601. The reversal of 505550280541 is 145082055505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 386280895225 + 119269385316 = 621515^2 + 345354^2 .

It is a cyclic number.

It is not a de Polignac number, because 505550280541 - 2²¹ = 505548183389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 505550280494 and 505550280503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505550280341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252775140270 + 252775140271.

It is an arithmetic number, because the mean of its divisors is an integer number (252775140271).

Almost surely, 2^505550280541 is an apocalyptic number.

It is an amenable number.

505550280541 is a deficient number, since it is larger than the sum of its proper divisors (1).

505550280541 is an equidigital number, since it uses as much as digits as its factorization.

505550280541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 200000, while the sum is 40.

The spelling of 505550280541 in words is "five hundred five billion, five hundred fifty million, two hundred eighty thousand, five hundred forty-one".