65628575 has 12 divisors (see below), whose sum is σ = 82916568. Its totient is φ = 51511200.

The previous prime is 65628571. The next prime is 65628583. The reversal of 65628575 is 57582656.

It is not a de Polignac number, because 65628575 - 2² = 65628571 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65628571) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 23441 + ... + 26090.

It is an arithmetic number, because the mean of its divisors is an integer number (6909714).

Almost surely, 2^65628575 is an apocalyptic number.

65628575 is a deficient number, since it is larger than the sum of its proper divisors (17287993).

65628575 is a wasteful number, since it uses less digits than its factorization.

65628575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49594 (or 49589 counting only the distinct ones).

The product of its digits is 504000, while the sum is 44.

The square root of 65628575 is about 8101.1465237953. The cubic root of 65628575 is about 403.3644858270.

The spelling of 65628575 in words is "sixty-five million, six hundred twenty-eight thousand, five hundred seventy-five".