1365216025 has 24 divisors (see below), whose sum is σ = 1886798880. Its totient is φ = 973820160.

The previous prime is 1365216019. The next prime is 1365216049. The reversal of 1365216025 is 5206125631.

It is not a de Polignac number, because 1365216025 - 2⁵ = 1365215993 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76459 + ... + 92608.

It is an arithmetic number, because the mean of its divisors is an integer number (78616620).

Almost surely, 2^1365216025 is an apocalyptic number.

It is an amenable number.

1365216025 is a deficient number, since it is larger than the sum of its proper divisors (521582855).

1365216025 is a wasteful number, since it uses less digits than its factorization.

1365216025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169113 (or 169108 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 1365216025 is about 36948.8298190890. The cubic root of 1365216025 is about 1109.3462657637.

The spelling of 1365216025 in words is "one billion, three hundred sixty-five million, two hundred sixteen thousand, twenty-five".