57277997 has 8 divisors (see below), whose sum is σ = 66196800. Its totient is φ = 48543264.

The previous prime is 57277973. The next prime is 57278003. The reversal of 57277997 is 79977275.

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

It is not a de Polignac number, because 57277997 - 2⁶ = 57277933 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 (57277937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45347 + ... + 46592.

It is an arithmetic number, because the mean of its divisors is an integer number (8274600).

Almost surely, 2^57277997 is an apocalyptic number.

It is an amenable number.

57277997 is a deficient number, since it is larger than the sum of its proper divisors (8918803).

57277997 is an equidigital number, since it uses as much as digits as its factorization.

57277997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92035.

The product of its digits is 1944810, while the sum is 53.

The square root of 57277997 is about 7568.2228429137. Note that the first 3 decimals coincide. The cubic root of 57277997 is about 385.4747547426.

The spelling of 57277997 in words is "fifty-seven million, two hundred seventy-seven thousand, nine hundred ninety-seven".