2552345545 has 4 divisors (see below), whose sum is σ = 3062814660. Its totient is φ = 2041876432.

The previous prime is 2552345519. The next prime is 2552345567. The reversal of 2552345545 is 5455432552.

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 1984524304 + 567821241 = 44548^2 + 23829^2 .

It is a cyclic number.

It is not a de Polignac number, because 2552345545 - 2⁵ = 2552345513 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 2552345498 and 2552345507.

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, 255234550 + ... + 255234559.

It is an arithmetic number, because the mean of its divisors is an integer number (765703665).

Almost surely, 2^2552345545 is an apocalyptic number.

It is an amenable number.

2552345545 is a deficient number, since it is larger than the sum of its proper divisors (510469115).

2552345545 is an equidigital number, since it uses as much as digits as its factorization.

2552345545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510469114.

The product of its digits is 600000, while the sum is 40.

The square root of 2552345545 is about 50520.7437098861. The cubic root of 2552345545 is about 1366.6159655657.

The spelling of 2552345545 in words is "two billion, five hundred fifty-two million, three hundred forty-five thousand, five hundred forty-five".