65245957 has 4 divisors (see below), whose sum is σ = 74566816. Its totient is φ = 55925100.

The previous prime is 65245951. The next prime is 65245967. The reversal of 65245957 is 75954256.

65245957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 65245957 - 2¹⁵ = 65213189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65245951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4660419 + ... + 4660432.

It is an arithmetic number, because the mean of its divisors is an integer number (18641704).

Almost surely, 2^65245957 is an apocalyptic number.

It is an amenable number.

65245957 is a deficient number, since it is larger than the sum of its proper divisors (9320859).

65245957 is an equidigital number, since it uses as much as digits as its factorization.

65245957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9320858.

The product of its digits is 378000, while the sum is 43.

The square root of 65245957 is about 8077.4969514077. The cubic root of 65245957 is about 402.5790788904.

The spelling of 65245957 in words is "sixty-five million, two hundred forty-five thousand, nine hundred fifty-seven".