305520232049 has 2 divisors, whose sum is σ = 305520232050. Its totient is φ = 305520232048.

The previous prime is 305520231917. The next prime is 305520232079. The reversal of 305520232049 is 940232025503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 260324448400 + 45195783649 = 510220^2 + 212593^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-305520232049 is a prime.

It is a super-2 number, since 2×305520232049² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (305520232079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152760116024 + 152760116025.

It is an arithmetic number, because the mean of its divisors is an integer number (152760116025).

Almost surely, 2^305520232049 is an apocalyptic number.

It is an amenable number.

305520232049 is a deficient number, since it is larger than the sum of its proper divisors (1).

305520232049 is an equidigital number, since it uses as much as digits as its factorization.

305520232049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 35.

The spelling of 305520232049 in words is "three hundred five billion, five hundred twenty million, two hundred thirty-two thousand, forty-nine".