65612750 has 32 divisors (see below), whose sum is σ = 140377536. Its totient is φ = 22495200.

The previous prime is 65612699. The next prime is 65612753. The reversal of 65612750 is 5721656.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65612753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16997 + ... + 20496.

It is an arithmetic number, because the mean of its divisors is an integer number (4386798).

Almost surely, 2^65612750 is an apocalyptic number.

65612750 is an abundant number, since it is smaller than the sum of its proper divisors (74764786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65612750 is a wasteful number, since it uses less digits than its factorization.

65612750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37517 (or 37507 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 65612750 is about 8100.1697513077. The cubic root of 65612750 is about 403.3320621654.

The spelling of 65612750 in words is "sixty-five million, six hundred twelve thousand, seven hundred fifty".