57091349 has 8 divisors (see below), whose sum is σ = 65317248. Its totient is φ = 48882960.

The previous prime is 57091337. The next prime is 57091351. The reversal of 57091349 is 94319075.

It is a happy number.

57091349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 57091349 - 2⁸ = 57091093 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 (57091369) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 3584 + ... + 11270.

It is an arithmetic number, because the mean of its divisors is an integer number (8164656).

Almost surely, 2^57091349 is an apocalyptic number.

It is an amenable number.

57091349 is a deficient number, since it is larger than the sum of its proper divisors (8225899).

57091349 is a wasteful number, since it uses less digits than its factorization.

57091349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8755.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 57091349 is about 7555.8817486776. The cubic root of 57091349 is about 385.0555921298.

It can be divided in two parts, 570 and 91349, that added together give a palindrome (91919).

The spelling of 57091349 in words is "fifty-seven million, ninety-one thousand, three hundred forty-nine".