57349405 has 4 divisors (see below), whose sum is σ = 68819292. Its totient is φ = 45879520.

The previous prime is 57349403. The next prime is 57349463. The reversal of 57349405 is 50494375.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27994681 + 29354724 = 5291^2 + 5418^2 .

It is not a de Polignac number, because 57349405 - 2¹ = 57349403 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 (57349403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5734936 + ... + 5734945.

It is an arithmetic number, because the mean of its divisors is an integer number (17204823).

Almost surely, 2^57349405 is an apocalyptic number.

It is an amenable number.

57349405 is a deficient number, since it is larger than the sum of its proper divisors (11469887).

57349405 is a wasteful number, since it uses less digits than its factorization.

57349405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11469886.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 57349405 is about 7572.9389935480. The cubic root of 57349405 is about 385.6348776044.

The spelling of 57349405 in words is "fifty-seven million, three hundred forty-nine thousand, four hundred five".