2520006542 has 8 divisors (see below), whose sum is σ = 3781662336. Its totient is φ = 1259452432.

The previous prime is 2520006539. The next prime is 2520006547. The reversal of 2520006542 is 2456000252.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520006547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269678 + ... + 278865.

It is an arithmetic number, because the mean of its divisors is an integer number (472707792).

Almost surely, 2^2520006542 is an apocalyptic number.

2520006542 is a deficient number, since it is larger than the sum of its proper divisors (1261655794).

2520006542 is a wasteful number, since it uses less digits than its factorization.

2520006542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550842.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 2520006542 is about 50199.6667518819. Note that the first 3 decimals coincide. The cubic root of 2520006542 is about 1360.8196007656.

Adding to 2520006542 its reverse (2456000252), we get a palindrome (4976006794).

The spelling of 2520006542 in words is "two billion, five hundred twenty million, six thousand, five hundred forty-two".