1515313425 has 12 divisors (see below), whose sum is σ = 2505318320. Its totient is φ = 808167120.

The previous prime is 1515313399. The next prime is 1515313427. The reversal of 1515313425 is 5243135151.

It is not a de Polignac number, because 1515313425 - 2¹² = 1515309329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1515313392 and 1515313401.

It is not an unprimeable number, because it can be changed into a prime (1515313427) 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, 10102015 + ... + 10102164.

Almost surely, 2^1515313425 is an apocalyptic number.

1515313425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1515313425 is a deficient number, since it is larger than the sum of its proper divisors (990004895).

1515313425 is a wasteful number, since it uses less digits than its factorization.

1515313425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20204192 (or 20204187 counting only the distinct ones).

The product of its digits is 9000, while the sum is 30.

The square root of 1515313425 is about 38927.0269221784. The cubic root of 1515313425 is about 1148.5965045890.

Adding to 1515313425 its reverse (5243135151), we get a palindrome (6758448576).

The spelling of 1515313425 in words is "one billion, five hundred fifteen million, three hundred thirteen thousand, four hundred twenty-five".