245455521041 has 2 divisors, whose sum is σ = 245455521042. Its totient is φ = 245455521040.

The previous prime is 245455521019. The next prime is 245455521049. The reversal of 245455521041 is 140125554542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 240452929600 + 5002591441 = 490360^2 + 70729^2 .

It is a cyclic number.

It is not a de Polignac number, because 245455521041 - 2³⁰ = 244381779217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 245455520986 and 245455521004.

It is not a weakly prime, because it can be changed into another prime (245455521049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122727760520 + 122727760521.

It is an arithmetic number, because the mean of its divisors is an integer number (122727760521).

Almost surely, 2^245455521041 is an apocalyptic number.

It is an amenable number.

245455521041 is a deficient number, since it is larger than the sum of its proper divisors (1).

245455521041 is an equidigital number, since it uses as much as digits as its factorization.

245455521041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160000, while the sum is 38.

The spelling of 245455521041 in words is "two hundred forty-five billion, four hundred fifty-five million, five hundred twenty-one thousand, forty-one".