1516919425 has 12 divisors (see below), whose sum is σ = 2149691776. Its totient is φ = 1040173200.

The previous prime is 1516919389. The next prime is 1516919429. The reversal of 1516919425 is 5249196151.

It is not a de Polignac number, because 1516919425 - 2¹¹ = 1516917377 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1516919429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4333881 + ... + 4334230.

Almost surely, 2^1516919425 is an apocalyptic number.

It is an amenable number.

1516919425 is a deficient number, since it is larger than the sum of its proper divisors (632772351).

1516919425 is an equidigital number, since it uses as much as digits as its factorization.

1516919425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8668128 (or 8668123 counting only the distinct ones).

The product of its digits is 97200, while the sum is 43.

The square root of 1516919425 is about 38947.6498007261. The cubic root of 1516919425 is about 1149.0021400742.

The spelling of 1516919425 in words is "one billion, five hundred sixteen million, nine hundred nineteen thousand, four hundred twenty-five".