56665125 has 96 divisors (see below), whose sum is σ = 117786240. Its totient is φ = 25920000.

The previous prime is 56665121. The next prime is 56665129. The reversal of 56665125 is 52156665.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (56665121) and next prime (56665129).

It is not a de Polignac number, because 56665125 - 2² = 56665121 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 56665125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56665121) 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, 235005 + ... + 235245.

It is an arithmetic number, because the mean of its divisors is an integer number (1226940).

Almost surely, 2^56665125 is an apocalyptic number.

56665125 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56665125 is an abundant number, since it is smaller than the sum of its proper divisors (61121115).

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

56665125 is a wasteful number, since it uses less digits than its factorization.

56665125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292 (or 279 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 56665125 is about 7527.6241271732. The cubic root of 56665125 is about 384.0949675597.

The spelling of 56665125 in words is "fifty-six million, six hundred sixty-five thousand, one hundred twenty-five".