65425249 has 4 divisors (see below), whose sum is σ = 65444400. Its totient is φ = 65406100.

The previous prime is 65425223. The next prime is 65425273. The reversal of 65425249 is 94252456.

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 65425249 - 2⁷ = 65425121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65425219) 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, 2899 + ... + 11800.

It is an arithmetic number, because the mean of its divisors is an integer number (16361100).

Almost surely, 2^65425249 is an apocalyptic number.

It is an amenable number.

65425249 is a deficient number, since it is larger than the sum of its proper divisors (19151).

65425249 is a wasteful number, since it uses less digits than its factorization.

65425249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19150.

The product of its digits is 86400, while the sum is 37.

The square root of 65425249 is about 8088.5875775688. The cubic root of 65425249 is about 402.9474960693.

The spelling of 65425249 in words is "sixty-five million, four hundred twenty-five thousand, two hundred forty-nine".