455991569 has 8 divisors (see below), whose sum is σ = 498525312. Its totient is φ = 413637840.

The previous prime is 455991559. The next prime is 455991577. The reversal of 455991569 is 965199554.

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

It is not a de Polignac number, because 455991569 - 2⁸ = 455991313 is a prime.

It is a super-4 number, since 4×455991569⁴ (a number of 36 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

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 455991569.

It is not an unprimeable number, because it can be changed into a prime (455991539) 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, 39674 + ... + 49859.

It is an arithmetic number, because the mean of its divisors is an integer number (62315664).

Almost surely, 2^455991569 is an apocalyptic number.

It is an amenable number.

455991569 is a deficient number, since it is larger than the sum of its proper divisors (42533743).

455991569 is a wasteful number, since it uses less digits than its factorization.

455991569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90007.

The product of its digits is 2187000, while the sum is 53.

The square root of 455991569 is about 21353.9590942757. The cubic root of 455991569 is about 769.6954825546.

The spelling of 455991569 in words is "four hundred fifty-five million, nine hundred ninety-one thousand, five hundred sixty-nine".