865627425 has 96 divisors (see below), whose sum is σ = 1787385600. Its totient is φ = 407531520.

The previous prime is 865627421. The next prime is 865627459. The reversal of 865627425 is 524726568.

865627425 is a `hidden beast` number, since 86 + 562 + 7 + 4 + 2 + 5 = 666.

It is not a de Polignac number, because 865627425 - 2² = 865627421 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (865627421) 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, 199681 + ... + 203969.

It is an arithmetic number, because the mean of its divisors is an integer number (18618600).

Almost surely, 2^865627425 is an apocalyptic number.

It is an amenable number.

865627425 is an abundant number, since it is smaller than the sum of its proper divisors (921758175).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

865627425 is a wasteful number, since it uses less digits than its factorization.

865627425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4344 (or 4333 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 865627425 is about 29421.5469511717. The cubic root of 865627425 is about 953.0382598480.

The spelling of 865627425 in words is "eight hundred sixty-five million, six hundred twenty-seven thousand, four hundred twenty-five".