65993125 has 40 divisors (see below), whose sum is σ = 93345120. Its totient is φ = 46200000.

The previous prime is 65993119. The next prime is 65993129. The reversal of 65993125 is 52139956.

It is a happy number.

It is not a de Polignac number, because 65993125 - 2³ = 65993117 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65993129) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 199210 + ... + 199540.

It is an arithmetic number, because the mean of its divisors is an integer number (2333628).

Almost surely, 2^65993125 is an apocalyptic number.

It is an amenable number.

65993125 is a deficient number, since it is larger than the sum of its proper divisors (27351995).

65993125 is a wasteful number, since it uses less digits than its factorization.

65993125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391 (or 376 counting only the distinct ones).

The product of its digits is 72900, while the sum is 40.

The square root of 65993125 is about 8123.6152666162. The cubic root of 65993125 is about 404.1099694916.

It can be divided in two parts, 659931 and 25, that added together give a palindrome (659956).

The spelling of 65993125 in words is "sixty-five million, nine hundred ninety-three thousand, one hundred twenty-five".