2516543442 has 24 divisors (see below), whose sum is σ = 6231441216. Its totient is φ = 719012376.

The previous prime is 2516543417. The next prime is 2516543489. The reversal of 2516543442 is 2443456152.

2516543442 is a `hidden beast` number, since 25 + 165 + 434 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2516543397 and 2516543406.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9986158 + ... + 9986409.

It is an arithmetic number, because the mean of its divisors is an integer number (259643384).

Almost surely, 2^2516543442 is an apocalyptic number.

2516543442 is an abundant number, since it is smaller than the sum of its proper divisors (3714897774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2516543442 is a wasteful number, since it uses less digits than its factorization.

2516543442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19972582 (or 19972579 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The square root of 2516543442 is about 50165.1616363388. The cubic root of 2516543442 is about 1360.1959496352.

Adding to 2516543442 its reverse (2443456152), we get a palindrome (4959999594).

The spelling of 2516543442 in words is "two billion, five hundred sixteen million, five hundred forty-three thousand, four hundred forty-two".