485705551 has 8 divisors (see below), whose sum is σ = 504004608. Its totient is φ = 467571000.

The previous prime is 485705503. The next prime is 485705587. The reversal of 485705551 is 155507584.

It is a happy number.

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 485705551 - 2⁹ = 485705039 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 (485705251) 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, 35095 + ... + 46936.

It is an arithmetic number, because the mean of its divisors is an integer number (63000576).

Almost surely, 2^485705551 is an apocalyptic number.

485705551 is a deficient number, since it is larger than the sum of its proper divisors (18299057).

485705551 is a wasteful number, since it uses less digits than its factorization.

485705551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82253.

The product of its (nonzero) digits is 140000, while the sum is 40.

The square root of 485705551 is about 22038.7284342813. The cubic root of 485705551 is about 786.0636053865.

The spelling of 485705551 in words is "four hundred eighty-five million, seven hundred five thousand, five hundred fifty-one".