57172541 has 4 divisors (see below), whose sum is σ = 57376284. Its totient is φ = 56968800.

The previous prime is 57172483. The next prime is 57172559. The reversal of 57172541 is 14527175.

57172541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 49632025 + 7540516 = 7045^2 + 2746^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57172541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57172498 and 57172507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57172741) 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 3 ways as a sum of consecutive naturals, for example, 101450 + ... + 102011.

It is an arithmetic number, because the mean of its divisors is an integer number (14344071).

Almost surely, 2^57172541 is an apocalyptic number.

It is an amenable number.

57172541 is a deficient number, since it is larger than the sum of its proper divisors (203743).

57172541 is a wasteful number, since it uses less digits than its factorization.

57172541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203742.

The product of its digits is 9800, while the sum is 32.

The square root of 57172541 is about 7561.2526078686. The cubic root of 57172541 is about 385.2380402329.

The spelling of 57172541 in words is "fifty-seven million, one hundred seventy-two thousand, five hundred forty-one".