2534545642 has 4 divisors (see below), whose sum is σ = 3801818466. Its totient is φ = 1267272820.

The previous prime is 2534545609. The next prime is 2534545681. The reversal of 2534545642 is 2465454352.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2298339481 + 236206161 = 47941^2 + 15369^2 .

It is a super-2 number, since 2×2534545642² = 12847843222762384328, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 2534545595 and 2534545604.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 633636409 + ... + 633636412.

Almost surely, 2^2534545642 is an apocalyptic number.

2534545642 is a deficient number, since it is larger than the sum of its proper divisors (1267272824).

2534545642 is a wasteful number, since it uses less digits than its factorization.

2534545642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267272823.

The product of its digits is 576000, while the sum is 40.

The square root of 2534545642 is about 50344.2711934536. The cubic root of 2534545642 is about 1363.4316527047.

Adding to 2534545642 its reverse (2465454352), we get a palindrome (4999999994).

The spelling of 2534545642 in words is "two billion, five hundred thirty-four million, five hundred forty-five thousand, six hundred forty-two".