2545450223345 has 8 divisors (see below), whose sum is σ = 3054548996520. Its totient is φ = 2036354359680.

The previous prime is 2545450223341. The next prime is 2545450223363. The reversal of 2545450223345 is 5433220545452.

It can be written as a sum of positive squares in 4 ways, for example, as 1135818799504 + 1409631423841 = 1065748^2 + 1187279^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2545450223345 - 2² = 2545450223341 is a prime.

It is a super-2 number, since 2×2545450223345² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2545450223296 and 2545450223305.

It is not an unprimeable number, because it can be changed into a prime (2545450223341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2495675 + ... + 3364415.

It is an arithmetic number, because the mean of its divisors is an integer number (381818624565).

Almost surely, 2^{2545450223345} is an apocalyptic number.

It is an amenable number.

2545450223345 is a deficient number, since it is larger than the sum of its proper divisors (509098773175).

2545450223345 is an equidigital number, since it uses as much as digits as its factorization.

2545450223345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454755.

The product of its (nonzero) digits is 2880000, while the sum is 44.

Adding to 2545450223345 its reverse (5433220545452), we get a palindrome (7978670768797).

The spelling of 2545450223345 in words is "two trillion, five hundred forty-five billion, four hundred fifty million, two hundred twenty-three thousand, three hundred forty-five".