2405564545 has 8 divisors (see below), whose sum is σ = 2901635496. Its totient is φ = 1914479616.

The previous prime is 2405564533. The next prime is 2405564563. The reversal of 2405564545 is 5454655042.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 60777616 + 2344786929 = 7796^2 + 48423^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2405564545 - 2⁷ = 2405564417 is a prime.

It is a super-2 number, since 2×2405564545² = 11573481560322114050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2405564498 and 2405564507.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1245442 + ... + 1247371.

It is an arithmetic number, because the mean of its divisors is an integer number (362704437).

Almost surely, 2^2405564545 is an apocalyptic number.

It is an amenable number.

2405564545 is a deficient number, since it is larger than the sum of its proper divisors (496070951).

2405564545 is a wasteful number, since it uses less digits than its factorization.

2405564545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2493011.

The product of its (nonzero) digits is 480000, while the sum is 40.

The square root of 2405564545 is about 49046.5548739155. The cubic root of 2405564545 is about 1339.8998486447.

The spelling of 2405564545 in words is "two billion, four hundred five million, five hundred sixty-four thousand, five hundred forty-five".