57078898 has 4 divisors (see below), whose sum is σ = 85618350. Its totient is φ = 28539448.

The previous prime is 57078887. The next prime is 57078913. The reversal of 57078898 is 89887075.

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., 47238129 + 9840769 = 6873^2 + 3137^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14269723 + ... + 14269726.

Almost surely, 2^57078898 is an apocalyptic number.

57078898 is a deficient number, since it is larger than the sum of its proper divisors (28539452).

57078898 is a wasteful number, since it uses less digits than its factorization.

57078898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28539451.

The product of its (nonzero) digits is 1128960, while the sum is 52.

The square root of 57078898 is about 7555.0577760862. The cubic root of 57078898 is about 385.0275979542.

The spelling of 57078898 in words is "fifty-seven million, seventy-eight thousand, eight hundred ninety-eight".