65143925 has 48 divisors (see below), whose sum is σ = 103183872. Its totient is φ = 39614400.

The previous prime is 65143919. The next prime is 65143937. The reversal of 65143925 is 52934156.

It is not a de Polignac number, because 65143925 - 2¹⁰ = 65142901 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 82382 + ... + 83168.

It is an arithmetic number, because the mean of its divisors is an integer number (2149664).

Almost surely, 2^65143925 is an apocalyptic number.

It is an amenable number.

65143925 is a deficient number, since it is larger than the sum of its proper divisors (38039947).

65143925 is a wasteful number, since it uses less digits than its factorization.

65143925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858 (or 853 counting only the distinct ones).

The product of its digits is 32400, while the sum is 35.

The square root of 65143925 is about 8071.1786623764. The cubic root of 65143925 is about 402.3691175855.

The spelling of 65143925 in words is "sixty-five million, one hundred forty-three thousand, nine hundred twenty-five".