57474487 has 8 divisors (see below), whose sum is σ = 69142400. Its totient is φ = 46670904.

The previous prime is 57474479. The next prime is 57474503. The reversal of 57474487 is 78447475.

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

It is not a de Polignac number, because 57474487 - 2³ = 57474479 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 (57474427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215937 + ... + 216202.

It is an arithmetic number, because the mean of its divisors is an integer number (8642800).

Almost surely, 2^57474487 is an apocalyptic number.

57474487 is a deficient number, since it is larger than the sum of its proper divisors (11667913).

57474487 is a wasteful number, since it uses less digits than its factorization.

57474487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432165.

The product of its digits is 878080, while the sum is 46.

The square root of 57474487 is about 7581.1929799999. The cubic root of 57474487 is about 385.9150371853.

The spelling of 57474487 in words is "fifty-seven million, four hundred seventy-four thousand, four hundred eighty-seven".