2543551042 has 8 divisors (see below), whose sum is σ = 3843176076. Its totient is φ = 1262492352.

The previous prime is 2543551001. The next prime is 2543551063. The reversal of 2543551042 is 2401553452.

It can be written as a sum of positive squares in 2 ways, for example, as 2452329441 + 91221601 = 49521^2 + 9551^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 2543550995 and 2543551013.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4641243 + ... + 4641790.

Almost surely, 2^2543551042 is an apocalyptic number.

2543551042 is a deficient number, since it is larger than the sum of its proper divisors (1299625034).

2543551042 is a wasteful number, since it uses less digits than its factorization.

2543551042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9283172.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 2543551042 is about 50433.6300696272. The cubic root of 2543551042 is about 1365.0445301167.

The spelling of 2543551042 in words is "two billion, five hundred forty-three million, five hundred fifty-one thousand, forty-two".