2545417855 has 8 divisors (see below), whose sum is σ = 3091303152. Its totient is φ = 2011799808.

The previous prime is 2545417829. The next prime is 2545417867. The reversal of 2545417855 is 5587145452.

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 2545417855 - 2¹⁹ = 2544893567 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 3066354 + ... + 3067183.

It is an arithmetic number, because the mean of its divisors is an integer number (386412894).

Almost surely, 2^2545417855 is an apocalyptic number.

2545417855 is a deficient number, since it is larger than the sum of its proper divisors (545885297).

2545417855 is an equidigital number, since it uses as much as digits as its factorization.

2545417855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6133625.

The product of its digits is 1120000, while the sum is 46.

The square root of 2545417855 is about 50452.1342957857. The cubic root of 2545417855 is about 1365.3784018912.

The spelling of 2545417855 in words is "two billion, five hundred forty-five million, four hundred seventeen thousand, eight hundred fifty-five".