65693750 has 48 divisors (see below), whose sum is σ = 128804256. Its totient is φ = 25080000.

The previous prime is 65693731. The next prime is 65693777. The reversal of 65693750 is 5739656.

It is a junction number, because it is equal to n+sod(n) for n = 65693698 and 65693707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143522 + ... + 143978.

It is an arithmetic number, because the mean of its divisors is an integer number (2683422).

Almost surely, 2^65693750 is an apocalyptic number.

65693750 is a deficient number, since it is larger than the sum of its proper divisors (63110506).

65693750 is an equidigital number, since it uses as much as digits as its factorization.

65693750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507 (or 487 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 41.

The square root of 65693750 is about 8105.1681043640. The cubic root of 65693750 is about 403.4979672291.

The spelling of 65693750 in words is "sixty-five million, six hundred ninety-three thousand, seven hundred fifty".