57540157 has 4 divisors (see below), whose sum is σ = 57568480. Its totient is φ = 57511836.

The previous prime is 57540127. The next prime is 57540167. The reversal of 57540157 is 75104575.

It is a happy number.

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 not a de Polignac number, because 57540157 - 2¹⁹ = 57015869 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 (57540107) 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 3 ways as a sum of consecutive naturals, for example, 10857 + ... + 15262.

It is an arithmetic number, because the mean of its divisors is an integer number (14392120).

Almost surely, 2^57540157 is an apocalyptic number.

It is an amenable number.

57540157 is a deficient number, since it is larger than the sum of its proper divisors (28323).

57540157 is a wasteful number, since it uses less digits than its factorization.

57540157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28322.

The product of its (nonzero) digits is 24500, while the sum is 34.

The square root of 57540157 is about 7585.5228560726. The cubic root of 57540157 is about 386.0619626338.

The spelling of 57540157 in words is "fifty-seven million, five hundred forty thousand, one hundred fifty-seven".