56547157 has 8 divisors (see below), whose sum is σ = 57879936. Its totient is φ = 55219872.

The previous prime is 56547149. The next prime is 56547163. The reversal of 56547157 is 75174565.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 56547157 - 2³ = 56547149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56544157) 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 7 ways as a sum of consecutive naturals, for example, 25393 + ... + 27529.

It is an arithmetic number, because the mean of its divisors is an integer number (7234992).

Almost surely, 2^56547157 is an apocalyptic number.

It is an amenable number.

56547157 is a deficient number, since it is larger than the sum of its proper divisors (1332779).

56547157 is a wasteful number, since it uses less digits than its factorization.

56547157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2747.

The product of its digits is 147000, while the sum is 40.

The square root of 56547157 is about 7519.7843719085. The cubic root of 56547157 is about 383.8282403326.

The spelling of 56547157 in words is "fifty-six million, five hundred forty-seven thousand, one hundred fifty-seven".