65752457 has 8 divisors (see below), whose sum is σ = 68097792. Its totient is φ = 63421200.

The previous prime is 65752451. The next prime is 65752499. The reversal of 65752457 is 75425756.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65752457 - 2¹⁶ = 65686921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65752451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6482 + ... + 13172.

It is an arithmetic number, because the mean of its divisors is an integer number (8512224).

Almost surely, 2^65752457 is an apocalyptic number.

It is an amenable number.

65752457 is a deficient number, since it is larger than the sum of its proper divisors (2345335).

65752457 is a wasteful number, since it uses less digits than its factorization.

65752457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7039.

The product of its digits is 294000, while the sum is 41.

The square root of 65752457 is about 8108.7888738085. The cubic root of 65752457 is about 403.6181263127.

The spelling of 65752457 in words is "sixty-five million, seven hundred fifty-two thousand, four hundred fifty-seven".