245304402545 has 4 divisors (see below), whose sum is σ = 294365283060. Its totient is φ = 196243522032.

The previous prime is 245304402503. The next prime is 245304402613. The reversal of 245304402545 is 545204403542.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 62356582369 + 182947820176 = 249713^2 + 427724^2 .

It is a cyclic number.

It is not a de Polignac number, because 245304402545 - 2⁸ = 245304402289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 245304402499 and 245304402508.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24530440250 + ... + 24530440259.

It is an arithmetic number, because the mean of its divisors is an integer number (73591320765).

Almost surely, 2^245304402545 is an apocalyptic number.

It is an amenable number.

245304402545 is a deficient number, since it is larger than the sum of its proper divisors (49060880515).

245304402545 is an equidigital number, since it uses as much as digits as its factorization.

245304402545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49060880514.

The product of its (nonzero) digits is 384000, while the sum is 38.

The spelling of 245304402545 in words is "two hundred forty-five billion, three hundred four million, four hundred two thousand, five hundred forty-five".