57278467 has 8 divisors (see below), whose sum is σ = 58085856. Its totient is φ = 56476992.

The previous prime is 57278461. The next prime is 57278471. The reversal of 57278467 is 76487275.

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 57278467 - 2⁷ = 57278339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57278461) 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, 20178 + ... + 22840.

It is an arithmetic number, because the mean of its divisors is an integer number (7260732).

Almost surely, 2^57278467 is an apocalyptic number.

57278467 is a deficient number, since it is larger than the sum of its proper divisors (807389).

57278467 is a wasteful number, since it uses less digits than its factorization.

57278467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2957.

The product of its digits is 658560, while the sum is 46.

The square root of 57278467 is about 7568.2538937327. The cubic root of 57278467 is about 385.4758090895.

The spelling of 57278467 in words is "fifty-seven million, two hundred seventy-eight thousand, four hundred sixty-seven".