65670575 has 24 divisors (see below), whose sum is σ = 86780160. Its totient is φ = 49126400.

The previous prime is 65670571. The next prime is 65670611. The reversal of 65670575 is 57507656.

It is not a de Polignac number, because 65670575 - 2² = 65670571 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65670571) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80771 + ... + 81579.

It is an arithmetic number, because the mean of its divisors is an integer number (3615840).

Almost surely, 2^65670575 is an apocalyptic number.

65670575 is a deficient number, since it is larger than the sum of its proper divisors (21109585).

65670575 is a wasteful number, since it uses less digits than its factorization.

65670575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027 (or 1022 counting only the distinct ones).

The product of its (nonzero) digits is 220500, while the sum is 41.

The square root of 65670575 is about 8103.7383348674. The cubic root of 65670575 is about 403.4505138808.

The spelling of 65670575 in words is "sixty-five million, six hundred seventy thousand, five hundred seventy-five".