57977855 has 8 divisors (see below), whose sum is σ = 74925312. Its totient is φ = 42814368.

The previous prime is 57977851. The next prime is 57977861. The reversal of 57977855 is 55877975.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 57977855 - 2² = 57977851 is a prime.

It is a super-2 number, since 2×57977855² = 6722863340802050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57977797 and 57977806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57977851) 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, 445919 + ... + 446048.

It is an arithmetic number, because the mean of its divisors is an integer number (9365664).

Almost surely, 2^57977855 is an apocalyptic number.

57977855 is a deficient number, since it is larger than the sum of its proper divisors (16947457).

57977855 is a wasteful number, since it uses less digits than its factorization.

57977855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891985.

The product of its digits is 3087000, while the sum is 53.

The square root of 57977855 is about 7614.3190765820. The cubic root of 57977855 is about 387.0383931000.

The spelling of 57977855 in words is "fifty-seven million, nine hundred seventy-seven thousand, eight hundred fifty-five".