57488906 has 4 divisors (see below), whose sum is σ = 86233362. Its totient is φ = 28744452.

The previous prime is 57488869. The next prime is 57488939. The reversal of 57488906 is 60988475.

57488906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 57078025 + 410881 = 7555^2 + 641^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 14372225 + ... + 14372228.

Almost surely, 2^57488906 is an apocalyptic number.

57488906 is a deficient number, since it is larger than the sum of its proper divisors (28744456).

57488906 is a wasteful number, since it uses less digits than its factorization.

57488906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28744455.

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 57488906 is about 7582.1438920664. The cubic root of 57488906 is about 385.9473068290.

The spelling of 57488906 in words is "fifty-seven million, four hundred eighty-eight thousand, nine hundred six".