2516378425 has 12 divisors (see below), whose sum is σ = 3403974096. Its totient is φ = 1830093200.

The previous prime is 2516378419. The next prime is 2516378443. The reversal of 2516378425 is 5248736152.

It is not a de Polignac number, because 2516378425 - 2²³ = 2507989817 is a prime.

It is a Duffinian 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 11 ways as a sum of consecutive naturals, for example, 4574959 + ... + 4575508.

It is an arithmetic number, because the mean of its divisors is an integer number (283664508).

Almost surely, 2^2516378425 is an apocalyptic number.

2516378425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2516378425 is a deficient number, since it is larger than the sum of its proper divisors (887595671).

2516378425 is a wasteful number, since it uses less digits than its factorization.

2516378425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9150488 (or 9150483 counting only the distinct ones).

The product of its digits is 403200, while the sum is 43.

The square root of 2516378425 is about 50163.5168723247. The cubic root of 2516378425 is about 1360.1662183303.

It can be divided in two parts, 251637 and 8425, that added together give a palindrome (260062).

The spelling of 2516378425 in words is "two billion, five hundred sixteen million, three hundred seventy-eight thousand, four hundred twenty-five".