65725554 has 8 divisors (see below), whose sum is σ = 131451120. Its totient is φ = 21908516.

The previous prime is 65725547. The next prime is 65725573. The reversal of 65725554 is 45552756.

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

65725554 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5477124 + ... + 5477135.

It is an arithmetic number, because the mean of its divisors is an integer number (16431390).

Almost surely, 2^65725554 is an apocalyptic number.

65725554 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

65725554 is a wasteful number, since it uses less digits than its factorization.

65725554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10954264.

The product of its digits is 210000, while the sum is 39.

The square root of 65725554 is about 8107.1298250367. The cubic root of 65725554 is about 403.5630712357.

The spelling of 65725554 in words is "sixty-five million, seven hundred twenty-five thousand, five hundred fifty-four".