65752157 has 4 divisors (see below), whose sum is σ = 65951136. Its totient is φ = 65553180.

The previous prime is 65752121. The next prime is 65752163. The reversal of 65752157 is 75125756.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65752157 - 2¹⁴ = 65735773 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65752157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65452157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98993 + ... + 99654.

It is an arithmetic number, because the mean of its divisors is an integer number (16487784).

Almost surely, 2^65752157 is an apocalyptic number.

It is an amenable number.

65752157 is a deficient number, since it is larger than the sum of its proper divisors (198979).

65752157 is a wasteful number, since it uses less digits than its factorization.

65752157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198978.

The product of its digits is 73500, while the sum is 38.

The square root of 65752157 is about 8108.7703753405. The cubic root of 65752157 is about 403.6175124668.

The spelling of 65752157 in words is "sixty-five million, seven hundred fifty-two thousand, one hundred fifty-seven".