2543378522 has 8 divisors (see below), whose sum is σ = 3887050356. Its totient is φ = 1247695072.

The previous prime is 2543378521. The next prime is 2543378533. The reversal of 2543378522 is 2258733452.

It can be written as a sum of positive squares in 2 ways, for example, as 2187339361 + 356039161 = 46769^2 + 18869^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 2543378522.

It is not an unprimeable number, because it can be changed into a prime (2543378521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11996963 + ... + 11997174.

Almost surely, 2^2543378522 is an apocalyptic number.

2543378522 is a deficient number, since it is larger than the sum of its proper divisors (1343671834).

2543378522 is a wasteful number, since it uses less digits than its factorization.

2543378522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23994192.

The product of its digits is 403200, while the sum is 41.

The square root of 2543378522 is about 50431.9196739525. The cubic root of 2543378522 is about 1365.0136673841.

The spelling of 2543378522 in words is "two billion, five hundred forty-three million, three hundred seventy-eight thousand, five hundred twenty-two".