845611025 has 96 divisors (see below), whose sum is σ = 1342199808. Its totient is φ = 515174400.

The previous prime is 845611021. The next prime is 845611033. The reversal of 845611025 is 520116548.

It is not a de Polignac number, because 845611025 - 2² = 845611021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 845610982 and 845611000.

It is not an unprimeable number, because it can be changed into a prime (845611021) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4887839 + ... + 4888011.

It is an arithmetic number, because the mean of its divisors is an integer number (13981248).

Almost surely, 2^845611025 is an apocalyptic number.

845611025 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

845611025 is a deficient number, since it is larger than the sum of its proper divisors (496588783).

845611025 is a wasteful number, since it uses less digits than its factorization.

845611025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 845611025 is about 29079.3917577380. The cubic root of 845611025 is about 945.6350163926.

The spelling of 845611025 in words is "eight hundred forty-five million, six hundred eleven thousand, twenty-five".