2516394903 has 24 divisors (see below), whose sum is σ = 3863010816. Its totient is φ = 1444813200.

The previous prime is 2516394889. The next prime is 2516394919. The reversal of 2516394903 is 3094936152.

It is a happy number.

It is not a de Polignac number, because 2516394903 - 2⁴ = 2516394887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2516394983) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 93703 + ... + 117528.

It is an arithmetic number, because the mean of its divisors is an integer number (160958784).

Almost surely, 2^2516394903 is an apocalyptic number.

2516394903 is a deficient number, since it is larger than the sum of its proper divisors (1346615913).

2516394903 is a wasteful number, since it uses less digits than its factorization.

2516394903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211283 (or 211264 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 42.

The square root of 2516394903 is about 50163.6811149262. The cubic root of 2516394903 is about 1360.1691872491.

The spelling of 2516394903 in words is "two billion, five hundred sixteen million, three hundred ninety-four thousand, nine hundred three".