2575455345 has 40 divisors (see below), whose sum is σ = 4775961960. Its totient is φ = 1326205440.

The previous prime is 2575455343. The next prime is 2575455361. The reversal of 2575455345 is 5435545752.

It is a happy number.

2575455345 is a `hidden beast` number, since 2 + 5 + 7 + 54 + 553 + 45 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 157176369 + 2418278976 = 12537^2 + 49176^2 .

It is not a de Polignac number, because 2575455345 - 2¹ = 2575455343 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2575455345.

It is not an unprimeable number, because it can be changed into a prime (2575455343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 97896 + ... + 121385.

It is an arithmetic number, because the mean of its divisors is an integer number (119399049).

Almost surely, 2^2575455345 is an apocalyptic number.

It is an amenable number.

2575455345 is a deficient number, since it is larger than the sum of its proper divisors (2200506615).

2575455345 is a wasteful number, since it uses less digits than its factorization.

2575455345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219327 (or 219318 counting only the distinct ones).

The product of its digits is 2100000, while the sum is 45.

The square root of 2575455345 is about 50748.9442747334. The cubic root of 2575455345 is about 1370.7281803861.

The spelling of 2575455345 in words is "two billion, five hundred seventy-five million, four hundred fifty-five thousand, three hundred forty-five".