2551445385 has 8 divisors (see below), whose sum is σ = 4082312640. Its totient is φ = 1360770864.

The previous prime is 2551445333. The next prime is 2551445389. The reversal of 2551445385 is 5835441552.

2551445385 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2551445385 - 2⁶ = 2551445321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2551445389) 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, 85048165 + ... + 85048194.

It is an arithmetic number, because the mean of its divisors is an integer number (510289080).

Almost surely, 2^2551445385 is an apocalyptic number.

It is an amenable number.

2551445385 is a deficient number, since it is larger than the sum of its proper divisors (1530867255).

2551445385 is a wasteful number, since it uses less digits than its factorization.

2551445385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170096367.

The product of its digits is 480000, while the sum is 42.

The square root of 2551445385 is about 50511.8341084542. The cubic root of 2551445385 is about 1366.4552875210.

The spelling of 2551445385 in words is "two billion, five hundred fifty-one million, four hundred forty-five thousand, three hundred eighty-five".