2516542320 has 80 divisors (see below), whose sum is σ = 7982739072. Its totient is φ = 655468800.

The previous prime is 2516542313. The next prime is 2516542337. The reversal of 2516542320 is 232456152.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111606 + ... + 132245.

Almost surely, 2^2516542320 is an apocalyptic number.

2516542320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2516542320 is an abundant number, since it is smaller than the sum of its proper divisors (5466196752).

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

2516542320 is a wasteful number, since it uses less digits than its factorization.

2516542320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243910 (or 243904 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 2516542320 is about 50165.1504532778. The cubic root of 2516542320 is about 1360.1957474875.

Adding to 2516542320 its reverse (232456152), we get a palindrome (2748998472).

The spelling of 2516542320 in words is "two billion, five hundred sixteen million, five hundred forty-two thousand, three hundred twenty".