2516511740 has 24 divisors (see below), whose sum is σ = 5339159952. Its totient is φ = 996226560.

The previous prime is 2516511737. The next prime is 2516511799. The reversal of 2516511740 is 471156152.

It is a junction number, because it is equal to n+sod(n) for n = 2516511697 and 2516511706.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 646646 + ... + 650525.

It is an arithmetic number, because the mean of its divisors is an integer number (222464998).

Almost surely, 2^2516511740 is an apocalyptic number.

2516511740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2516511740 is an abundant number, since it is smaller than the sum of its proper divisors (2822648212).

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

2516511740 is a wasteful number, since it uses less digits than its factorization.

2516511740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297277 (or 1297275 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 2516511740 is about 50164.8456590868. The cubic root of 2516511740 is about 1360.1902379498.

Adding to 2516511740 its reverse (471156152), we get a palindrome (2987667892).

The spelling of 2516511740 in words is "two billion, five hundred sixteen million, five hundred eleven thousand, seven hundred forty".