65725425 has 72 divisors (see below), whose sum is σ = 126380800. Its totient is φ = 33825600.

The previous prime is 65725409. The next prime is 65725441. The reversal of 65725425 is 52452756.

It is an interprime number because it is at equal distance from previous prime (65725409) and next prime (65725441).

It is not a de Polignac number, because 65725425 - 2⁴ = 65725409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65725425.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 188151 + ... + 188499.

Almost surely, 2^65725425 is an apocalyptic number.

It is an amenable number.

65725425 is a deficient number, since it is larger than the sum of its proper divisors (60655375).

65725425 is a wasteful number, since it uses less digits than its factorization.

65725425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405 (or 388 counting only the distinct ones).

The product of its digits is 84000, while the sum is 36.

The square root of 65725425 is about 8107.1218690729. The cubic root of 65725425 is about 403.5628072102.

The spelling of 65725425 in words is "sixty-five million, seven hundred twenty-five thousand, four hundred twenty-five".