57878745 has 8 divisors (see below), whose sum is σ = 92606016. Its totient is φ = 30868656.

The previous prime is 57878729. The next prime is 57878759. The reversal of 57878745 is 54787875.

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

It is not a de Polignac number, because 57878745 - 2⁴ = 57878729 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1929277 + ... + 1929306.

It is an arithmetic number, because the mean of its divisors is an integer number (11575752).

Almost surely, 2^57878745 is an apocalyptic number.

It is an amenable number.

57878745 is a deficient number, since it is larger than the sum of its proper divisors (34727271).

57878745 is a wasteful number, since it uses less digits than its factorization.

57878745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3858591.

The product of its digits is 2195200, while the sum is 51.

The square root of 57878745 is about 7607.8081600419. The cubic root of 57878745 is about 386.8177269297.

The spelling of 57878745 in words is "fifty-seven million, eight hundred seventy-eight thousand, seven hundred forty-five".