3215405252025 has 18 divisors (see below), whose sum is σ = 5759148074030. Its totient is φ = 1714882800960.

The previous prime is 3215405252023. The next prime is 3215405252047. The reversal of 3215405252025 is 5202525045123.

3215405252025 is a `hidden beast` number, since 3 + 21 + 5 + 40 + 52 + 520 + 25 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 1007078482089 + 2208326769936 = 1003533^2 + 1486044^2 .

It is not a de Polignac number, because 3215405252025 - 2¹ = 3215405252023 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3215405252023) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7145344780 + ... + 7145345229.

Almost surely, 2^{3215405252025} is an apocalyptic number.

It is an amenable number.

3215405252025 is a deficient number, since it is larger than the sum of its proper divisors (2543742822005).

3215405252025 is a wasteful number, since it uses less digits than its factorization.

3215405252025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14290690025 (or 14290690017 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The spelling of 3215405252025 in words is "three trillion, two hundred fifteen billion, four hundred five million, two hundred fifty-two thousand, twenty-five".