478525961 has 4 divisors (see below), whose sum is σ = 478837632. Its totient is φ = 478214292.

The previous prime is 478525919. The next prime is 478525969. The reversal of 478525961 is 169525874.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-478525961 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (478525969) 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, 153521 + ... + 156606.

It is an arithmetic number, because the mean of its divisors is an integer number (119709408).

Almost surely, 2^478525961 is an apocalyptic number.

It is an amenable number.

478525961 is a deficient number, since it is larger than the sum of its proper divisors (311671).

478525961 is a wasteful number, since it uses less digits than its factorization.

478525961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311670.

The product of its digits is 604800, while the sum is 47.

The square root of 478525961 is about 21875.2362501528. The cubic root of 478525961 is about 782.1712247953.

The spelling of 478525961 in words is "four hundred seventy-eight million, five hundred twenty-five thousand, nine hundred sixty-one".