1516422225 has 24 divisors (see below), whose sum is σ = 2512865952. Its totient is φ = 806915200.

The previous prime is 1516422221. The next prime is 1516422227. The reversal of 1516422225 is 5222246151.

It is not a de Polignac number, because 1516422225 - 2² = 1516422221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1516422192 and 1516422201.

It is not an unprimeable number, because it can be changed into a prime (1516422221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10405 + ... + 56045.

It is an arithmetic number, because the mean of its divisors is an integer number (104702748).

Almost surely, 2^1516422225 is an apocalyptic number.

1516422225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1516422225 is a deficient number, since it is larger than the sum of its proper divisors (996443727).

1516422225 is a wasteful number, since it uses less digits than its factorization.

1516422225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46097 (or 46092 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 1516422225 is about 38941.2663507493. The cubic root of 1516422225 is about 1148.8765903839.

Adding to 1516422225 its reverse (5222246151), we get a palindrome (6738668376).

The spelling of 1516422225 in words is "one billion, five hundred sixteen million, four hundred twenty-two thousand, two hundred twenty-five".