56141557 has 4 divisors (see below), whose sum is σ = 56697516. Its totient is φ = 55585600.

The previous prime is 56141549. The next prime is 56141581. The reversal of 56141557 is 75514165.

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 52432081 + 3709476 = 7241^2 + 1926^2 .

It is a cyclic number.

It is not a de Polignac number, because 56141557 - 2³ = 56141549 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 (56141507) 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, 277828 + ... + 278029.

It is an arithmetic number, because the mean of its divisors is an integer number (14174379).

Almost surely, 2^56141557 is an apocalyptic number.

It is an amenable number.

56141557 is a deficient number, since it is larger than the sum of its proper divisors (555959).

56141557 is a wasteful number, since it uses less digits than its factorization.

56141557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555958.

The product of its digits is 21000, while the sum is 34.

The square root of 56141557 is about 7492.7669788937. The cubic root of 56141557 is about 382.9083329263.

The spelling of 56141557 in words is "fifty-six million, one hundred forty-one thousand, five hundred fifty-seven".