57548749 has 4 divisors (see below), whose sum is σ = 58887136. Its totient is φ = 56210364.

The previous prime is 57548719. The next prime is 57548761. The reversal of 57548749 is 94784575.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57548749 is a prime.

It is a super-2 number, since 2×57548749² = 6623717022930002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57548719) 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 3 ways as a sum of consecutive naturals, for example, 669129 + ... + 669214.

It is an arithmetic number, because the mean of its divisors is an integer number (14721784).

Almost surely, 2^57548749 is an apocalyptic number.

It is an amenable number.

57548749 is a deficient number, since it is larger than the sum of its proper divisors (1338387).

57548749 is a wasteful number, since it uses less digits than its factorization.

57548749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338386.

The product of its digits is 1411200, while the sum is 49.

The square root of 57548749 is about 7586.0891769080. The cubic root of 57548749 is about 386.0811775003.

The spelling of 57548749 in words is "fifty-seven million, five hundred forty-eight thousand, seven hundred forty-nine".