478257051 has 8 divisors (see below), whose sum is σ = 652505920. Its totient is φ = 311423112.

The previous prime is 478257047. The next prime is 478257053. The reversal of 478257051 is 150752874.

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

It is not a de Polignac number, because 478257051 - 2² = 478257047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478257053) 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, 1853581 + ... + 1853838.

It is an arithmetic number, because the mean of its divisors is an integer number (81563240).

Almost surely, 2^478257051 is an apocalyptic number.

478257051 is a deficient number, since it is larger than the sum of its proper divisors (174248869).

478257051 is a wasteful number, since it uses less digits than its factorization.

478257051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3707465.

The product of its (nonzero) digits is 78400, while the sum is 39.

The square root of 478257051 is about 21869.0889384995. The cubic root of 478257051 is about 782.0246823623.

The spelling of 478257051 in words is "four hundred seventy-eight million, two hundred fifty-seven thousand, fifty-one".