2516142542 has 16 divisors (see below), whose sum is σ = 3808788480. Its totient is φ = 1246571928.

The previous prime is 2516142533. The next prime is 2516142547. The reversal of 2516142542 is 2452416152.

It is a junction number, because it is equal to n+sod(n) for n = 2516142499 and 2516142508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2516142547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207203 + ... + 219009.

It is an arithmetic number, because the mean of its divisors is an integer number (238049280).

Almost surely, 2^2516142542 is an apocalyptic number.

2516142542 is a deficient number, since it is larger than the sum of its proper divisors (1292645938).

2516142542 is a wasteful number, since it uses less digits than its factorization.

2516142542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12775.

The product of its digits is 19200, while the sum is 32.

The square root of 2516142542 is about 50161.1656762480. The cubic root of 2516142542 is about 1360.1237167586.

Adding to 2516142542 its reverse (2452416152), we get a palindrome (4968558694).

The spelling of 2516142542 in words is "two billion, five hundred sixteen million, one hundred forty-two thousand, five hundred forty-two".